No. Nobody does. According to their bronze age desert god such things are forbdiden. You can also change. Their so called holy book says “that is what some of you were”. So, no, nobody knows any homosexual jw’s, strickly speaking.
Now in practicality are there homosexual jw’s? Of course. Jw’s are a cross section of whatever culture they live amongst. Why anyone think there are NOT homosexual jw’s? Or left handed jw’s? Or jw’s with peanut allergies?
Or did you mean practicing or openly homosexual jw’s? If that was your question see point one.