I mainly use Anilist with Taiga to auto track my watching. I also use the Automail userscript for some bonus stuff on anilist, and douki to sync with MAL every once in a while.

AniDB seems to have the best database, as its name implies, so I go there often to look up minor credits like episode directors or song composers. It also has tools to track your locally downloaded library for those who like to build their own collection.

I'll throw my list in here cause its my first comment on lemmy https://anilist.co/user/Pencilsharp333/