Different people have very different lives, so I'm interested to hear the range of replies.
Do you only get sexual in a monogamous relationship? Do you use 'hookup apps' or specialized apps? Do you meet people at events? Casual events, special-interest clubs, hobby clubs? Are you involved in a fetish community? Do your friendships become sexual? Do you party at dance clubs? Do you pay at a brothel? Do you get approached unexpectedly in public? Do you look for partners intentionally or do you meet partners incidentally?
But when we were swinging, SLS app was pretty good, for over-30 crowd anyway. And assuming you are looking for a couple or a man.
If looking at my whole life?
8 years hookups just with friends and acquaintances.
Then monogamous for 20 years, until 5 years of no sex then I got a lover and realized I wasn't gonna make it celibate the rest of my life.
Then a couple years of drama, some swinging, etc.
Then I met my eventual husband, online. We had some years of swinging but for health reasons about 8 years monogamous now. I can do this easier with him because we fuck at least once a day, for a dozen years so far.