I'm speaking from the viewpoint of onboarding newcomers, many of whom are not going to be tech-savvy. Keep in mind one of the most common complaints from people hesitant to try out Lemmy is that it seems "too complicated". Sure, you could tell them:

"Okay, first go to the Fediverse Map and find some instances that are hosted close to your geographical location. Look at their stats and find a couple that seem to have good uptime. Now go explore each of them and look at what rules and policies they have, how their admins are behaving and what their plans for funding are medium-long term. Then just pick the one that comes out best in this evaluation!"

This is how I signed up where I did, but let's be realistic and accept that this will not be a viable pitch to onboard most people.