Questions or Suggestions for 18 highpowered servers?

Hey guys sorry if this isn't the place for this I just highly respect your opinions. I'm mostly a lurker

I have a network I maintain of 18+ 1gbps, 32GB DDR4, 8 core xeons, with DDoS protection up to 100gbps, spread across the globe (LA, Denver, NY, TX, FL, Atlanta, Amsterdam, London) and many other places.

The project I was working on got halted. I was wondering what are some cool things I could set up with a network like this especially behind cloudflare? Any suggestions on running fun stuff for communities? I just want to give back. But of course if you guys have some million dollar ideas I'd like to hear it.

I'm burned out from computing lately and just can't come up with anything.

Thanks again!