I moved to Substack so that I'm part of a community as well, which I don't always get with a blog (along with the newsletter feature). How do you replicate tha

I moved to Substack so that I'm part of a community as well, which I don't always get with a blog (along with the newsletter feature). How do you replicate that (the newsletter bit) as part of a standalone blog easily? To me, starting a blog is no problem, connecting it with a larger audience is what's missing.