I have never really thought about this until it was mentioned as part of another thread and now I'm curious. Are there actually legit sites? I was once under the impression that most were either scams, fronts for advertising cam models, phone sex, etc.  or littered with fake ads to the point of being unusable. Do people use sites or now is it more dating apps? like tinder, match, etc.? Anyone have first hand experience? positive or negative? any SDs or SBs out there?  

https://www.youtube.com/watch?v=S3W7g2puKY4

Seeking is the most popular and most legit of the SD/SB websites.  That being said, it ain't no walk in the park. lol.
Guys on the Erotic Highway page of TER provide great advice.  You can also find info on Reddit, but take it with a grain of skepticism.  There are women on those Reddit pages that are definitely hoes that must feel undermined by sugar babies or at least act like sugar babies and complain about how their escort tactics don't work. lol.

I've had SBs in a couple of different cities over the last 7 years.  I've really enjoyed it.  Some are just under the radar escorts but occasionally you find one you really connect with and its a lot of fun.  I enjoy it more than the traditional escort scene.  I've had several UTR types that we just had dinner and then sex at a rate that was better than seeing and an escort.  Lot of scammers out there too!