Eh, you feel like the sites are overrated and decided to check out the other contenders on the web. 

Two in fact catches your eye:

FatHotWomen.com
Like the name implies, you can hook up with tall girls that has their bellies bigger than their heads. This one came from a friends recommendation after hooking up with a Jamaican BBW. He'd been hospitalized after ordering a multiple 7-hour facesitting session. Lucky Bastard?

GiantessEnthusiast.org
A classic, old site for those who wanted to roleplay with or as giantess. There's no feature for hiring people but a few DMs to the right person should do the trick, though be aware they do still think everything either of you will do is roleplay...