That’s okay. I can help. First of all, it’s really fine to stay on LW for now, no need to rush anything. But if at some point you have some time for this, then read the following.
So, to pick your instance, you can have a look at lemmy.fediverse.observer/list, filter by “1m” to see what are the most popular ones. As you can see, with a 27433 monthly users, Lemmy.world is by far the most popular, which is why you might experience some issues from time to time.
You should have a look at the next instances on the list. Short story: lemm.ee, sh.itjust.works, lemmy.one, sopuli.xyz and reddthat.com are solid choices.
You are looking at instances with quite a lot of people (the more people help with filling your “All” feed), just not the most populous one (lemmy.world), the original one (lemmy.ml), and instances that are too specific, either due to country or specific focus.
Long story:
spoiler- lemmy.ml is the original insance, also quite crowded, not really the best choice - lemm.ee can be nice, you can have a look at it and see how fast it is for you. The admin communicates a lot and is very helpful. - sh.itjust.works had some rough time in the last few days. You might also not like the name, that’s okay. - beehaw.org does not federate with the big instances, so if you go there, you will be in their own space. It can a valid choice, but please have a look at their guidelines first, they tend to moderate a lot. Can work for you, or not. - feddit.de, lemmy.ca, discuss.tchncs.de, feddit.uk, aussie.zone are country specific instances, so probably not interesting to you if you are not from there - lemmynsfw is a NSFW instance, probably not the one you want to move to - programming.dev is an instance focused on programming - lemmy.blahaj.zone is a pro queer instance
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To migrate your settings (including subscriptions and blocked instances), you can use that script: github.com/CMahaff/lasim