https://github.com/Fmstrat/lcs
Short and clean JavaScript code to subscribe a Lemmy instance to popular communities.
https://github.com/lflare/lemmy-subscriber-bot
Python tool to subscribe to communities.
https://github.com/jheidecker/lemmony
Python tool to subscribe to communities.
https://github.com/CMahaff/lasim
Rust, Lemmy Account Settings Instance Migrator
https://github.com/wescode/lemmy_migrate
Python, Lemmy Migrate
https://lemmy.ml/comment/1247803 Python script for moving community subscribe list between servers