Season One

Episodes 1 & 2 - lots of side clones, good intro to the series
Episode 5 - Rex & Cody go to save some rookies
Episodes 13 & 14 - clone side characters but still the two major commander clones hangin w their jedi
Episode 16 - there is a SPY!!!
Episodes 17/18 - no clone focus, but they're there gettin infected, there's a lil talk there
Episodes 19/20 - 19 is just context, 20 has two major named clones adopting a lil twilek girl (it is resolved in ep 21)

Season Two

Episode 5 - a good look at clones in the field, not clone focused
Episode 8 - this is just here for me to laugh at a bunch of clones being zombified and killed but when a jedi gets zombo'd they save her. y'all. come on.
Episode 10 - rex runs into a deserted clone and denies having feelings for half an hour
Episode 13 - part of a larger plot, extremely optional, it just has some funny shots in it tbh
Episode 20 - young boba fett infiltrates a group of clone cadets

Season Three

Episode 1/2 - Clones trying to pass the test to GO TO WAR
Episode 18/19/20 - Jedi and Clones have to infiltrate a creepy separatist prison

Season Four

Episodes 5/6 - These are mostly droid episodes but wiki says the wolfpack is there??? if you really like wolffe check these out ig
Episodes 7/8/9/10 - BRRRRR UMBARA BRRRRRRRRRRRRRRRR
Episodes 11/12/13 - more of a trio episode than anything else but, you know. rex is there. wearing a dumb helmet.

Season Five

Episodes 2/3/4/5 - also skippable but i know who i'm writing this for and you can skip through to see rex teaching rebels. it cute.

Season Six

Episodes 1/2/3/4 - a CONSPIRACY is uncovered and HONESTLY??? THIS IS VERY SAD AND I DON'T REWATCH IT BC IT MAKES ME SAD. a v good arc though.

Season Seven

This season isn't out yet but ftr the arc The Bad Batch is about a bunch of funky clones that were made differently specifically to be a commando group out on a mission. rex comes and loses his entire shit pretty extravagantly.

there will also be an arc on mandalore. that will be about order 66. it is going to be VERY SAD.