In my last job search, I sent out a few dozen resumes utilizing snail mail. It was from a job board that searched for job descriptions that only accepted applications through physical mail. There were some big tech companies I was able to apply to. Ultimately, I didn't get a role from snail mail but it was an interesting process. I would probably expose myself if I detailed the specific service I used, but you can lookup online tools where you upload a PDF and they print it out and send it to an address for like $1 each (more for certified, priority, etc.) and I confirmed it worked. I even had companies mail me back rejection letters, so that was a first.