My place doesn’t have many good surfaces for a suction cup to stick (and we don’t have a headboard), and I’ve been having trouble getting into a good position that doesn’t feel awkward or doesn’t kill my knees or thighs 
I have the Lifelike Lover Luxe Realistic Multicolored Silicone Dildo, and I feel like it’s pretty easy to hold 
I’ve mainly used it holding it by the suction cup (or my husband holding and maneuvering it) or sitting it on a pillow or pile of blankets (to elevate it from the floor) and holding it down by the suction cup while I use it since it won’t suction to a pillow or blanket 
Some of the position enhancers like the Liberator BonBon Toy Mount would probably help get into a more comfortable position, but I just recently got the Liberator Wedge, so I don’t want to rush and get another position enhancer yet…
This thread might give you some ideas 
