The Swell Wand
was my reintroduction to glass after I swore it off for four years. It got me obsessed! It's texture free. It has a bulb at the end that should work well if you respond to blunt stimulation.
If you want to try some texture the Bumpy Spiral Double Dong
has two different kinds so you can test them out to see what you like. I don't have it because glass texture and I are not good friends, but I figure two is better than one when you're trying things out! I've seen some other forum members recommend it before from experience, I believe.