Lokking for cool niche services, shells, free stuff.

I'll start:
https://tilde.green - free shells with static webpages, privateBin (pastebin), Git

https://segfault.net - free temporary VPS servers, all go trough VPN's, TOR proxy, tons of coolest stuff i've seen

https://fmhy.net - FREE MEDIA HECK YEAH - how to screw copyrights while staying safe, tons of resources

https://free-for.dev - resources on free stuff to aid with development