I follow individuals and hardly notice what instance they're on. Do y'all subscribe to whole instances? FWIW, I'm on maly.io.
toot.cafe's where I ended up - Nolan's a pretty cool guy with a lot of interesting thoughts about privacy, security, tech and the internet in general, and life. Happy to make use of his instance, where the global timeline is full of pretty interesting technical stuff (and, of course, plenty of funny stuff and obligatory cat pictures)