Seeing as games companies are using AI to mass report sites for DMCA I figured it'd be a good time to circle the wagons around safe sites you can use for your roms needs. Here's my list I have bookmarked so far:

https://vimm.net/ (recently got hit with a dmca and had to remove stuff)

https://r-roms.github.io/ (megathread of roms stuff)

https://gog-games.to/ (my go-to for GOG games)

https://edgeemu.net/ (lots of classics)

https://fitgirl-repacks.site/ (excellent modern PC games)

Of course we also have archive.org which I hope most people know about by now.

For fun here's some video game private servers:

https://github.com/XiPrivateServers/Servers/blob/main/SERVERS.md (final fantasy xi private server listings)

https://www.eqemulator.org/index.php?pageid=serverlist (everquest private servers)

https://github.com/diasurgical/devilutionX (source port of diablo 1, hosts multiplayer games)

https://slashdiablo.net/ (diablo II private server)

https://cp.payonstories.com/ (best classic ragnarok online server I found)