I was in a similar position. I made a prioritized list of target companies and projects, and then ‘practiced’ interviewing from the bottom up.

One surprising thing I learned from the initial interviews with my lower priority targets was that my prioritization was wrong, in terms of challenges, interests and compensation.

Doesn't mean there isn't an even better option out there :-)

Also I'd like to work on something related to tackling climate breakdown, so I'll almost always chat to companies in that space. Sadly I need to pay off some debt before I can take a paycut to work on these problems (or risk a startup).