Make a list of "n" things you'd do if qualifications and time and history and salary were no object.
There are some interesting projects I found :
- http://arep.med.harvard.edu/ - https://nintil.com/technology-some-people-are-excited-about/ - https://www.gwern.net/Statistical-notes#someone-should-do-something-wishlist-of-miscellaneous-project-ideas -https://marginalrevolution.com/marginalrevolution/2019/12/work-on-these-things.html - https://docs.google.com/document/d/1Vb8WWbsVyEJzl66_qqtZfFr2uLL07Y7SJH5XKldjDPY/edit