I've had a great deal of success just reaching out to people on LinkedIn who've worked on cool stuff in areas I find interesting, message them to see if they're keen to meet for a coffee/beer/etc. Meetups are fun too. A good number of people are happy to just chat for 30min, and you might get a few pointers on where to look for what you want. The worst case outcome is that you meet someone new, and talk about things you find mutually interesting for a little while.
Only one person's story ofc, but I'm happy! Face to face stuff is so much more valuable than submitting online forms, and tech meetups are stimulating, fun, and pretty common in cities.
If you have nothing interesting to say you ought to find something- if you're unemployed you must have a lot of time on your hands.
With luck, one of them will be in a company or organization you want to apply to.