I have more than 1000 mods and i use/mix around 100 for the screenshots so this is a small example of which mods i tested and i recommend.

But keep in mind this:

-I'm not only using these mods.
-This isn't a complete list.
-Don't install all the mods, just try them and make your own mix.
-I won't reupload the mods if they're deleted from Nexus.
-Don't install lots of mods at the same time, install only a few (or only one) and test them.
-Read their description and watch the screenshots.




CHARACTERS

A Better body scale for Khajit and Argonian Male (khajiit & argonian body)
ApachiiSkyHair (hair)
Beards (beards)
Better makeup for SKSE (makeup)
Better males - Beautiful nudes and faces - New hairstyles (males)
Better Females (face skin)
Calientes Female Body Mod Big Bottom Edition [CBBE] (body)
CBBE skin texture V2 V3 plus Thepal and UNP compatible (body/face skin)
Coverkajits (khajiits skin)
Coverwomen (face skin)
Cute Eyes (eyes)
Dimonized UNP Female Body [UNP] (body)
Enhanced Character Edit (character edit)
Envision Face (face skin)
Ethereal Elven Overhaul (Elves)
Extended Slider Colors (+colors)
Fair Skin Complexion Sweaty Body (skin)
Hair Packs of Fallout 3 (hair)
Hair Packs of TES IV Oblivion (hair)
JazzJR Argonian retexture (argonian skin)
JazzJR CoverKhajiits Bodytexture Ver1 (male khajiit skin)
JazzJR CoverKhajiits Female Bodytexture (female khajiit skin)
Lady Boy (body/face mesh/skin)
Lively Lovely Screenie - Facial Expression With Lip Sync (facial expression)
Mature skin texture and body (body/face skin)
Morten Hairs (hair)
Natural Eyes (eyes)
Pretty Face (face skin)
RaceMenu (racemenu)
Ran's Headmesh Variants (face mesh)
Real Girls Realistic Body Texture for UNP UNPB and SeveNBase (face & body skin)
Realistic Teeth (teeth)
SG Female Eyebrows (brows)
SG Female Textures Renewal (body/face skin)
SG Hair Pack 268 Edition (hair)
Smile in HD (teeth)
Sporty Sexy Sweat - wet body skin texture (skin)
The Eyes of Beauty (eyes)
UNP BLESSED BODY UNPB [UNPB]  (body)
Vampire Skin For- CBBE CHSBHC UNP SeveNBase and DreamGirl (face & body skin)


ADD-ONS / FIXES

360 Walk & Run (animation)
A Matter of Time - A HUD clock widget (HUD time)
A Quality World Map (map)
Analog of Skyrim Distant Detail (distance detail)
Categorized Favorites Menu (HUD)
Colored Map Markers Updated (HUD/map)
Customizable Camera (camera)
Distant Decal Fix (decals)
Immersive First Person View (first persona camera)
Footprints (footprints)
Get Snowy (snow)
Horizon Extended Sky Mesh (Sky mesh)
Inmersive HUD (HUD)
KenMOD - Time on loading screen (HUD)
MFG Console (re-enables MFG commands)
Safety Load (savegame load fix)
Skyrim Particle Patch for ENB (particles/meshes fix)
Snow FX for ENB (snow)
Player Home Map Markers (map)
Sky UI (HUD) Skyrim Performance Monitor (performance monitor)
Status (information)
Wet and Cold (immersion)


ARMOR / WEAPONS / CLOTHES

Aesir Armor (armor)
aMidianBorn Book of Silence (armors/weapons)
Arise - Chapter 1 - The Black Sacrament (armor)
Bandolier - Bags and Pouches (bags & pouches)
Blood Witch Armor (armor)
Brokefoots UNP Mashup Compilation (clothes)
Cloaks of Skyrim (cloaks)
Contractor and Mavari Armors (armors)
Dragon Knight Armor (armor)
Einherjar Armor (armor)
Elaborate Textiles - NPC Clothing Retexture (clothes)
Evil MasterMind Armor (armor)
Ghosus Weapon Pack (weapons)
Improved NPC Clothing - High Res (clothes)
Inmersive Armors (armors)
Inmersive Weapons (weapons)
Isilmeriel LOTR Weapons Collection (weapons)
JaySus Swords (weapons)
Omegared99 - Armor Compilation (weapons)
Opulent Outfits - Maids and Merchants - v7 Female Only (clothes)
Queen of the damned-Akasha Dress (clothes)
Raven witch armor and Apex Werewolf (armor)
Remodeled Armor (CBBE) (armors)
Remodeled Armor (UNP) (armors)
TERA Armor Collection - CBBE - standalone (armors)
TERA Armors Collection for Skyrim - Male and UNP female (armors)
The Art of Magicka (clothes)
The Chronicles of Steel (weapons)
Ultimate Assortment by Favoredsoul (accessories)
West Wind Combat Series - Misfit Mage UNP (clothes)
Winter Is Coming - Cloaks (cloaks)


LANDSCAPE / DUNGEONS

2K Road Snow Footprints (snow)
Alternative Smoke (smoke)
Alternative Snow (snow)
aMidianBorn Caves (dungeons)
aMidianBorn Farmhouse (farmhouses retexture)
aMidianBorn Landscape 1 (landscape textures)
aMidianBorn Whiterun (whiterun)
Beautiful Skyrim Galaxy and Nebula Pack 2k 4k and 8k (sky)
Better Landscape Textures (landscape)
Bryce Nebula - Skyrim galaxy replacer (nebula)
Crimson Tide (blood)
Detailed Rugs (rugs)
Dragon Nebula Galaxy Replacer (nebula)
Glowing Ore Veins 300 (ore veins)
Enhanced Blood Textures (blood)
Enhanced Night Skyrim (nebula/stars)
Hectrol CAVES DELUXE HighRes Retex (dungeons)
Hectrol FX RAINDROPS Deluxe HR for Natural Skyrim Rain (rain)
HD Detailed Terrain (terrain)
HD Enhanced Terrain (terrain)
HD Soul Gems (soul gems)
Improved Rock and Mountain Texture (rock/mountain)
Inside the Nebula (nebula)
Lush Grass (grass)
Lush Trees (tress)
Mosh Rocks (rocks)
Natural Skyrim Rain (rain)
Project Parallax Remastered (towns)
Pure Waters (water)
Quality Snowflakes (snowflakes)
Rainbows (rainbows)
Real Clouds (clouds)
Real Ice ALL-IN-ONE (ice)
Real Snow (snow)
Realistic Smoke & Embers (smoke & embers)
Realistic Water Two (water)
Ruins Clutter Improved (dungeons)
Silly Level of Detail - Potions & Poisons (potions & poisons)
Silly Level of Detail - Wine Cellar (bottles)
Static Mesh Improvement Mod (meshes)
SkyFalls - Animated Distant Waterfalls (distant waterfalls)
SkyFix - Unique Inn Signs HD (signs)
Skyrim Flora Overhaul (flowers/grass/trees)
Skyrim HD 2K (town/landscape/dungeon/misc textures)
Skyrim Lore Friendly Vanilla Nightsky Retexture 4k (sky)
Skyrim Realistic Overhaul (town/landscape/dungeon/misc textures)
Skyrim Realistic Texture Overhaul Dragonborn  (town/landscape/dungeon/misc textures)
Skyrim Ultra HD Texture Pack (misc textures)
Skyrocks (rocks)
Serious HD Retexture (dungeon/landscape textures)
Superior Rock Textures (rocks)
Ultimate HD Fire Spells (fire)
Visible Windows (windows)
Water and Terrain Enhancement Redux (water)
Waves (waves)


ANIMALS / MONSTERS

Behemoth The Feathered Dragon (dragon)
Bellyaches Animal & Creature Pack (animals)
Birds of Skyrim (animals)
Pets of Skyrim (animals)


WEATHER / LIGHT

CLARALUX - More and Brighter Lights (lights)
Climates of Tamriel (weathers)
Enhanced Lighting for ENB (light)
Enhanced Lights and FX (light)
Extensive Sunsprite Shader for ENB (sunsprite)
More Dynamic Shadows with Striping Fixed (light)
Real Clouds (clouds)
Realistic Lightning Overhaul (light)
Remove Interior Fog (fog)
Revamped Exterior Fog (fog)