Recently wefwef.app added an option to add the link to all of your reddit subscriptions (multireddit link from old.reddit) and search for replacement subs. You can pick which communities/instances you want to subscribe for each sub.
You should know this because it can make your life easier if you want to search for communities you’re familiar with.
Nooo, I wasted so much time yesterday importing subreddits manually. But still thanks for sharing.