Recently found the project called Red Lanterns https://ico.red-lanterns.com/ The name drawed my attention. The idea is that there are a lot of unverified info about sex in Internet and they have an app where you can get  a consultation with real certified doctor about sex issues via messenger or videochat. I think it is worth to exist due to a low level of sexual education in our society, moreover a lot of people just ashamed to go to the sexologist. So happy that they do not provide escort services but give a serious help.