I found something, though i was not looking for it.
I record all WDs and so can see the patterns and frequency, and even learned to predict them, and so sleep with a sock on and tight-ish underwear, and would help contain the mess half the time, and the other half, be useless, but it was always only a small release anyway.
So yeh... Yoga.
Practiced daily for 30 - 60 minutes. Reduced my wet dreams from about one a week to over a month without any, until i stopped the regular yoga.
Get into it and just don't worry about it, whatever happens. The body is wiser than you are.