I think this is good use for microblogging platforms like Mastodon and the others, to which you can link to from within your blog. If you've written a lot of mini-posts[1] that fit a theme you can edit them together into larger blog post eventually. If you have complete control over your website you could even feature some of your most recent or popular mini-posts on your front page.

[1] I don't know what the best term is to describe theses kinds of posts that distinguishes them from long form blog posts. What do people do on Mastodon--toot? I'm just going with mini-post for now.