How to incorporate Augmented Reality / 3d models into IRL livestream?

[tanvirSani]

Hey all, planning on live streaming IRL with IRLToolkit/OBS and Sony FDR300 and was wondering how I can add 3d models for augmented reality in my stream. Want to do things like have a dancing 3d figure next to me as a background dancer to a song. Or have a floating cash object like in a video game.

Any ideas? New to this world