The best app for real relationships, not just finding hookups.

Hey, I’m(22m) trying to get out there, meet people look for real sexual connection that could lead to relationship. I want to try some online/apps ¬†such as Secret Affairs, Available For Sex, and ¬†Illicit Match. I want to meet someone I genuinely get along with, have sex and grow that, but I kinda feel like all of the online dating culture is about hooking up and one night stands.. does anyone have advice on apps? My friend advised me to join NSA Sex Contacts. What do you think guys?