Suggestions for inviting friends in my app (there is no global feed or a way to discover others)

So as the title says, there is no global way to discover other users like in X or Instagram but I would still like to give users the ability to add other friends (obviously whomever they may know in real life). My current implementation is that I have a button that shares their user UUID (MVP implementation, also still in beta) and the other user has to manually enter it.

This is less than ideal for many reasons, not the least of which being the UUID code just looks weird to most people.

What options do I have? I would love for there to be a way where instead of sharing the UUID, I share a weblink they can click that will automatically open the app to the add friend page.