this might also help:
https://permies.com/advertising/
https://permies.com/wiki/27826/advertising-free-free-permies
The readers here don't respond well to things that look like spam (links with no content, the same post over and over again... ). But they do respond well to one media (pictures, videos, whatever) rich
thread. Put a link to that thread in your signature (as well as to the site). When you
answer questions, write posts people like, that sort of thing, people will see the links in the signature and check it out.
You can also bump the thread with updates (about once a week seems ideal) and more photos and the like.