Personally, I'm still just a student, so I don't even have much money for myself. However, I've been compiling a list of projects to which I'd like to donate one day when I get a decent job. It includes many apps from FDroid, a couple of distros and a Japanese dictionary app that I absolutely love. I'd also like to create free-libre apps too, so I can give back to the community in the future.
Z-library is my personal pick, It's currently on the darkweb, however, you can access it through tor, or with a web browser that uses tor (like Brave). Once you're in you can generate a personal clearnet link. You can even set up your own telegram bot.
You could try fixing grub from a live linux session. How to do the fixing is beyond my knowledge tho... Good luck!
Maybe because Cuba gets in the way smh
There's the option of raising an army of clones and take control over the senate, that way you don't have to worry about the job market anymore
Obligatory cat pic