A little from Column A and a little of Column B I would think.
I don't think any "average" man would turn away free sex, if it's there, if it's offered. Seems like a perfectly healthy thing to pursue.
But if such random acts of passion are unavailable, I can also see why some men might seek out escorts, which are sex workers who are sometimes referred to as prostitutes. I would hesitate to use the latter term simply because escorts always have sex by choice, since the client pays for her time and companionship. Solicitation is for sexual acts, and monetized accordingly.
Regardless, most men don't know where to turn when they are ready to pay but have no offers coming in. They might seek solace in sex dating sites.
My recommendations would be as follows:
1. Ashley Madison
The most notorious affair and one night stand site, and the one with the "Life is short have an affair" catchphrase. It appeals to married people who want to fool around discreetly.
2. Adult Friend Finder
A little more publicly exhibitionist than private, AdultFriendFinder is a catch all sex site, built like Facebook but with hardcore nudity featured. It's the place to go to find sexually adventurous partners are learn a few things as you go.
3. Flure
A fairly new app that brings people together based on just a sentence, or a fantasy, or a secret desire. It's a one night stand sort of site that satisfies passions rather than finding friends who are more open minded about commitment.
4. Tinder
Kind of the default sex-finding site, since it matches people locally for intimacy, and or a longer-term relationship. Unfortunately, also overwhelmed with fakers and spammers from what I hear.
5. Hinge
Hinge is similar to Tinder but perhaps more discriminating. It matches people based on mutual liking and personality, not just location and looks.
6. Bumble
Also like Tinder/Hinge, but gives more power to women. They make the first move after mutual matching someone and start the conversation.
7. Feeld
A generally free-thinking dating site, which is swinger and poly friendly.
8. Tryst
More of a sex and escorting list site, but formatted like a dating site. Maybe too intense for sensitive viewers!
9. SkiptheGames & MegaPersonals
Two escort listing sites that are not arranged like a dating site. Instead, they are formatted like Craigslist, just a personal ads type of theme.
10. Zoosk
From what I've heard, a fun video streaming site where people meet face to face on a public camera system, much like TikTok.
Hope this helps.