Try the Fabric Discord https://discord.gg/v6v4pMv and post a request in the "mod requests" channel, it might be considered. If you want to do Fabric modding yourself try these tutorials:
YouTube videos (few on it but from a few devs I know):
Fabric doesn't have too many sources for modding tutorials other then the videos I've found and the documentation on their website which does get updated often I'd say. It's not like Forge which has been around for a longer time and has 100s of tutorials.