In my experience three notable Mistresses I knew did recommend others I should see, based on my likes and fetishes. There was no jealousy or rancor involved.

When my original Mistress, Belle de Jour, all but stopped doing sessions for a while in the 1980s she recommended several ladies over the years. Granted, they were employed by her but the selections were never a disappointment. (And after she supposedly "retired" I sweet talked my way into her serving her a couple of times.)

That's how I met Mistress Ava Taurel. I saw Ava after she left Belle for a year or two. Given my Amazon role play, one day she generously recommended two Mistresses that she knew but did not employ. I saw each one. And, separately, I served Empress Dominique of NJ for a time starting in the late 1990s. The Empress said met at a party a well-known porn star who wanted to become domina who is someone I should meet because I'd like her and the lady would get a kick out of my scene. (Her name escapes me now.) We never did connect.

It is a business, but I was lucky. These three legendary Mistresses loved the scene and, I guess, liked my enthusiasm so they made unsolicited recommendations.