Pluto (ep1 was all it took for me)
Blue eyed samurai (not anime, scratches the gory samurai action itch though)
Samurai Champloo
Arcane (not anime, rly nice)
Cowboy bebop
Katanagatari (fun)
Terror in Resonance
Rakugo shinjuu (might not be ur thing)
Monogatari series (long)
Durarara
Ermm not a series but all the Ghibli movies would be good (Porco Rosso, Kiki, wind rises, nausicaa, most the 80-90s stuff). Jin-roh was cool too. so was Redline (okay this is just peak male fantasy ngl)
My mister (kdrama cus why not)
Prison playbook (also kdrama)
Violet Evergarden
Cyberpunk: Edgerunners (was pretty fun)
Hannibal (series)
Jujutsu kaisen
Hamatora the animation (maybe)
darker than black
Hajime no ippo (good ol' sports anime)
Saga of Tanya the evil (pretty interesting)
Comments above are pretty good to start with honestly. Code geass, AOT