I'm the wrong person to ask about discoverability because I've been blogging for 22 years and I've accumulated 100,000+ followers on Twitter, 39,000 on Bluesky etc.

It's worth offering an email subscribe mechanism. I didn't do that for the first ~20 years - I offered just an RSS feed - but when I added the Substack newsletter option it become clear I should have been gathering email addresses from a lot earlier on!

Despite having a substantial audience visiting my site now I still think the best way to get traffic to an article is to tell people about it elsewhere. I follow the POSSE principle: publish on own site, syndicate elsewhere: https://indieweb.org/POSSE

Honestly though quality is much more important than quantity. Join communities of like-minded individuals and make sure that a small number of engaged people get to see your stuff. Opportunities from that are likely to be more valuable than if you have a much larger audience who aren't as closely aligned with what you're publishing.