My past employers include some lackluster companies that not too many people knew. I found those companies by browsing the local startup incubator's press releases. When the times were good, I attended some tech-related meetups (virtual or in person) to learn what others did. There are some smaller venture capitalist firms such as 8VC that work with many startups. You may learn about opportunities that not too many people are aware of.

Just like what at least one other person have said, ensure that you've an up-to-date LinkedIn profile. In addition, have someone in recruiting or in software development to read over your resume. Remote jobs could receive many applications because the applicants are not bounded by their locations. With the number of applications, it is easy for the recruiters and the hiring managers to stop reading weak applications even if you are experienced. I used the paid resume review service from levels.fyi.