Stop limiting yourself. Photograph what ever the hell you want. You can choose what you show and to whom.
I used to want to be a gig photographer. Shot a lot of gigs. Then portraits. But literally nothing else.
Now at 39, after a 10 year hiatus, I have decided not to let anything limit myself. I photograph everything I find interesting. Because why the hell not.
There was a post about it a while ago.
I suggest maybe go to galleries, exhibit openings and make personal connections. All the while noticing all the little bits & bobs about this sector literally anywhere. Maybe a chat over a drink works better.
But these people have climbed the greasy pole on their own so I doubt they’re very willing to basically help out a competitor who is going to come and get a slice of the same pie.
Also, some techniques they use are probably almost unconscious- they don’t even notice they’re doing something.