I don't have advice but I have experience. My SO and I met through online dating. When we met, we started the relationship as openly as possible, with some reservation on my end (the abdl side) we talked about literally everything else, what we wanted in the relationship, our lives and where we came from, basically we built up and solidified a strong emotional connection. I knew from all that, that this person was someone with an open mind. I first brought up my BDSM kink and they responded by confiding their kinks to me! That kink being out there I still waited about 8 months before I could bring myself to admit (at night in a car in case you want the setting lol) that I have a diaper fetish. Since then I've slowly been exploring it and keeping my SO aware of it. I'd say that the cliche that relationships with absolute honesty and communication work best, is true af. Hope this helps, be brave bud!! Telling anyone comes with the fear of rejection and your secret leaking out to others! But as long as you trust your gut on whether or not the person you pursue will respond well, and that they respect you and your privacy, you should be just fine :) good luck on the dating journey I wish you nothing but happiness.