Is there a comprehensive list of problem champs - or "good" champs

Ok so I played as my main

And guess, what, Sion, major rework, morde, garen, malz, all major reworks.

I completely stopped playing malz after 6.23 made his voidlings rubbish at waveclear and much clunkier to use. Post-rework, i still enjoyed and played him a fair bit.

Garen's "villain" mechanic is garbage, as you have no control over it and the vast majority of the time its useless, unlike 's for example, and its wasted power budget means I no longer have built in tenacity, so I'm forced to take mastery's or gear to be relevant.

Sion has a great kit, except now he is 100% tank he's not playable mid (Where I used to main him) Toplane you get no real use out of said kit for the first half of the game, He's fun in the jungle, but plenty of other stuff I would rather play.

Other champs I have bought in the last season or two All have lost a lot of consistency / beaten by the nerf bat based on Worlds play.

TLDR; Is there a list of champs that arn't going to get a major change this year, So I can pick a main and get more than 3 months play out of.