20 years ago I set up profiles in the dating websites. I did it both ways, not mentioning my disability and writing openly about my advocacy work. It didn’t seem to make a difference. It’s easier for women because guys always make the first move. My close friend posted her profile. Guys responded to her picture and didn’t even read what she wrote about her disability. When they contacted her, the correspondence continued until they got to that one thing. Then they disappeared.
This is the important part: don’t be scared. If just mentioning your disability chases people away, consider that to be a filter protecting you. The perfect is the enemy of the good. If they are prejudiced enough not to even give you the time of day, then that is a lot better than wasting months or weeks with these jerks and having them break your heart later after you have already invested much of yourself into them for nothing.
And like Dr. Ruth said on the radio back in the 80s, your chances are much greater if you get out there and get involved in activities which attract people who have things in common with you.