I used to try to tell Phoenix Marie this all the time when she would bitch & moan about wanting to be married. Let's be honest, in real life guys think a girl is slutty who has slept with 20 guys much less 200 on camera. So civilians are out. Pro athletes, famous people...they aren't going to be seen in public with a porn star so they are out. Black men aren't going to put a ring on it so they are out. You are left with the other damaged people in the porn industry to date. Good luck with that. lol
In fairness you also have a larger pool of "damaged people" outside the industry who would be just as willing. And, classify them how you like, but there is without a doubt a contingent of men who find the thought that she has been with 200 or better 2000 guys a huge turn on. I realize that "turn on" and "want to marry" are not the same thing, but men do think with their dicks, and it translates for some.
Probably the biggest problem is finding the civilians who think that way, but isn't this what the Internet is for? Phoenix Marie could advertise for a guy in age range X, decent looks/shape, decent finances, willing to marry. I will bet anything there will be takers. She may need a shrink on call to weed out the dangerous ones.