Submissive Positions are talked about all over like everyone is supposed to be doing them or something. Not every relationship is set up to provide that level of protocol and you should never expect a relationship to automatically have that. If you are interested in positions, ask your partner or prospective partner if they’d be interested before you go learning any. They may have preferences to how you should look and act. Following them is by far more important than learning about positions online (unless that is their direction).