Anal Dildos

I want to get an anal dildo, but need help. I prefer something with realistic look, feel, and size. Size-wise, I really would like an average-sized man...but preferably on the "well-endowed" side. Spur Vixskin looks promising, but I worry it will be too small or too flimsy/flexible for insertion. The O2 Mark is a candidate, but is that too big or too firm? Feel free to educate me.. Let me know your opinions, please.

*also, what is a good solution for playing with a dildo hands-free? I've seen a leg harness from sportsheets that could be used on a pillow, or a double suction cup as two possibilities.

All the best: best dildo for anal