In regards to emulation theres
http://the-eye.eu/public/rom/And this that i got from some anon but haven't looked into yet
https://vimm.net/For the emulators themselves i find that emulator zone works well. Has a collection of emulation software for every console
I remember
https://downloads.khinsider.com/Being good for getting videogame music. You could download entire osts in a zip, or at least quickly download each song one by one iirc. Only issue was that you needed to refer different ips using a referral link to be allowed to download more osts or something, it was easily manipulated with a vpn and browser proxy i believe. Ive yet to try it with tor and its identity changing feature
>Anime Character Databasehttp://www.animecharactersdatabase.com/Search for characters by hair color, eye color, hair length, age, gender and animal ears.
>Dead 2 Rightshttps://d2rights.blogspot.com/The blog of a guy who reviews all sorts of things.
>Lichesshttps://lichess.org/An internet chess server that includes tutorials and daily exercises.
>Living Lines Libraryhttp://livlily.blogspot.com/A blog with a large collection of production art of popular animated films.
>Monster Brainshttp://monsterbrains.blogspot.com/A blog with a large collection of pictorial representations of all kinds of monsters.
>Musicoveryhttp://b2b.musicovery.com/A music recommendation and playlist engine, personalized in real time.
>Noirlachttp://noirlac.tumblr.com/A Tumblr page with a large collection of pixel art.
>Rokko Chanhttp://king-soukutu.com/flash/rokko.htmlA flash game based on Mega Man. It also includes an artbook and its soundtrack.