I haven’t watched much animation since I was a kid outside of occasionally South Park, Family Guy, or the Simpsons, but I haven’t really watched even those in the last few years. Then a year or two ago I watched ATLA and LoK after. I just finished a re-watch and am now on a bit of an animation kick. After those I tried Blue Eye Samurai and Arcane, and both where great. Now I’m watching Legend of Vox Machina and Mighty Nein. So far so good. Oh and of course I’ve been keeping up with Invincible. I guess im looking for more suggestions similar to those, but I can be a bit picky. I thought AoT was good during the first several seasons, but I got lost with the plot and haven’t watched the last few.
Death Note and Code Geass are some of the best psychological thrillers.
Cowboy Bebop is an all time great.
Seven Deadly Sins is fun and Four Knights of the Apocalypse is a good sequel.
Bojack Horseman and F is for Family are good western adult animation.
Violet Evergarden is a good romantic/emotional show.
Frieren: Beyond Journey’s End and Dungeon Meshi/Delicious in Dungeon are good shows in somewhat the same genre as vox Machina.
RWBY is worth watching at least through season 3, the creator died during the third seasons and the later stuff isn’t quite as good.