Occasionally, your players may want access to a service provided by Class Features – a Move Tutor, for example,or perhaps a Hatcher. The availability for these services depends on you, and you should consider your setting before making any service available.

That said, below are some of the more common NPC services accompanied by recommended frequencies of availability and prices.

Commonly available services probably can be given out pretty freely without hurting anything. "Possibly" and "Rarely" available services should be considered a bit more before inserting them into your setting. Also note, you should of course mix and match across rarity levels as it suits you; A Hatcher with Master Rank Pokemon Education could only have Rattatas and Pidgeys for adoption, for example.

Generalist Tutors: These Tutors have taken Mentor Features, and are rarer than Specialist Tutors and often more expensive, but can provide varied services.
Commonly: Latent Potential (800Y)
Possibly: Move Tutor (Varies Per Move), Corrective Learning (1200)
Rarely: Changing Viewpoints (2500), Versatile Teachings (2500)

Specialist Tutors: These Tutors have taken the "Tutoring" Feature, and can teach only a single specific Move to Pokemon that could learn that Move via Level-Up, TM, Egg-Move list, or Move Tutor. Having one of these per town can be an interesting way to keep players looking forward to new locations. Prices should vary from 1000 to 3000, depending on the strength of the Move in question.

Chefs:  Rare gourmet foods are relatively common in big cities in restaurants, food stalls, and cafes. However, they are often sold at a significant mark-ups. Items such as Vitamins and Refreshments are usually sold at their normal market price.
Commonly: Super Bait (Y400), Vile Bait (Y400), Honey Candy (Y150), Stat Suppressants (Y500)
Possibly: Salty Surprise and Similar (Y600), Preserves (Matches Price of original item)
Rarely: Dumplings (Combined Item Price +500)

Fashionistas: Oh baby! Salons are common in big cities, and their services widely available - if pricy. Their makeovers will last until your next extended rest.
Commonly: Stylish Makeover (Y1000)
Rarely: Elaborate Masquerade (Y1000)

Hatchers: Hatchers are very rare. All Hatchers can be assumed to have Breeder, Hatcher, Birthright, and Complex Personality. The difference between various Hatchers are their Skill Rank in Pokemon Education which affects the effects of Birthright, and the Eggs or young Pokemon they offer for adoption. You may want to consider the presence and availability of Hatchers in your game very carefully.
Commonly: Adept Pokemon Education, Common and cute Pokemon such as Rattata, Sentret, Pidgey, Lillipup, etc. (Y1,000)
Possibly: Expert Rank Education, Slightly Rarer Pokemon such as Pichu, Sandshrew, or Poliwag (Y5000)
Rarely: Master Rank Education, "Starter" Pokemon or other rare breeds (Y10,000 or more).
Very Rarely: Stronger or Rare Pokemon (Y15,000 or more)