Is there an orientation manual for Lemmy? Honestly, Lemmy isn’t even the first DDG result for Lemmy (the first result is the Motorhead founder).
What I really want to know is how to pull in forums from other servers because I’m used to a very curated firehouse of content from Reddit and Lemmy so far seems more about making do with what conversation and audience are available. I found a page from 3 years ago describing a somehwat programmery process to do so…
Also, is there a place to find similar reddit subs? My favorite sub on reddit was the subreddit NOT about literally fucking cars but about the importance of micromobility in a car-dominated landscape. Also: cats who look like Ron Perlman.

I feel like I have pretty varied interests, though, so my ideal community might be a conglomeration; or I’d need separate accounts (is that frowned upon) for multiple communities.
As long as your instance federates with other instances, there isn’t a need to have a separate account.
For example, I am a member of lemmy.dbzer0.com and you are part of sh.itjust.works and we are able to communicate no problem.
You can subscribe, post, comment, private message across the fediverse.
Some instances defederate with others for a litany of reasons, political, mods/admins, etc. sometimes it’s temporary.
Picking an instance, you should try a few to see which ideology matches yours the best.
I seem to be doing ok on my first and current server. My only real complaint is that a few times I’ve tried to have a nuanced conversation and it’s just turned into a competition to see who has the furthest-left take on it, but that’s really not the worst thing in the world.
Think the community I like is pragmatic left(?)… gonna see where its coming from; probably a confederated thing since it has >0 traffic.