My favourite is an own-brand glass dildo that I got from LoveHoney which has now been discontinued. The Blossom G is fairly similar and still available. Personally, I love the rigidity and insertibility of glass for g-spot stimulation - I've never been into the temperature-play aspects, though glass warms up to body temperature quite fast.
There are lots of different types of dildos available here on Eden. Some are rigid, and some are plush. It depends on your preferences.
My favorite dildo is the Fleshlight Freaks Zombie. I don't think it's so much the look of it, but the feel. I've discovered that I really like softer silicone.
Are you looking for something realistic? Something made of silicone or something more rigid?