Which open source projects have large expenses? Buying the creator a coffee is nice, but if money is actually required for something to exist I'd rather give there.

Right now I'm extremely poor, but maybe someday I'll be in the same boat as OP. My Lemmy instance and Tor come to mind, and then maybe Wikipedia, although I know their aggressive fundraising has already worked.

Edit: Oh shit, the Invidious instance I use should probably go first.