How I started - I'm a guy
Step 1 - I booked a model and her partner filmed and photographed me with her. (This cost money, but I figured you have to invest in yourself or no one else will).
Step 2 - I sent that to producers and got nowhere. Several said "find a new girl and we'll use you with her".
Step 3 - I talked to girls - "do you want to get into porn?" and, some slaps later, I met Emma, and she was interested.
We did a shoot for a producer. He liked what I did, booked me for some more with different girls and that helped me get work with other producers.
The rest is history.
If you want to do Step 1 (which does work for some people - though the odds are still long) - I can help. If you find a new girl, ditto.
PS NO ONE wants to give you a chance. Loads of guys want this, but producers know that most can't do it (for all their talk) so why would they risk the costs of a shoot on you? You can forget about BG shared content as well.