A lot of them pay their seniors very well, most pay them well, and they look like nice places to have a "normal job". But they don't get press attention, they don't get talked about on socials (inluding HN), and they don't advertise the same way as others. A lot of them you wouldn't even think of as "software companies", but they build software that makes them the best in some oddball domain programmers never think of, so they are normal, profitable businesses that don't run out burn and crash in balls of fire laying everyone off.
My advice would be broaden your skill set to encompass a wider range of both the stack and of less hip technology, and then start looking and advertising outside the normal startup-heavy places. They are totally out there.