mastodon
I have finally had this explained to me forcefully enough for it to get through, I think: some people *need* reach, mastodon is intentionally designed against getting reach, and I actively prefer it that way. There's a clear difference in what we're looking for that means artists aren't as likely to want to set up shop here.
I'll pretty much follow anyone wherever though, as long as it doesn't require me to have an account on an actively terrible service, and I can use a web browser.