My advice is not to stick to a certain niche with them but offer them what they want free porn find someone like
Free Ticket Cash or any other site that offers free signup or email collection.
Most of my traffic is this type of traffic and FTC I switched off of a while back but was doing $100 worth of sales every couple months or so just with $.75 email collection. I am not even sure if they are still even accepting traffic but just to give you an idea of what works.
Free or cheap signups are what snatch sales from those clicks
in any niche teen and cheerleader being my biggest 2.