I think the best way to convince people to move is to use this sub for its intended purpose of discussing Obsidian MD and how to use it. Right now the top posts on this sub are about reddit and open source philosophy, so it's not immediately clear to people migrating that this is a great community for discussing Obsidian's utility.
I’m finding https://sub.rehab/ to be the best resource for making the switch. If you haven’t submitted the link for this community, please do! Reddit is taking down a lot of the “here’s our community on Lemmy” posts so I’m just directing everyone to sub.rehab so they can find theirs communities for themselves. I think this central resource is the best way to do this.
I think that giving too many choices to users who are already confused by the concept of federation and instances will enhance their paralysis of making choice due to cognitive overload (See https://en.m.wikipedia.org/wiki/Overchoice ).
I've found out kbin.social the easiest to get used to (end-user wise).