I want to buy a fleshlight but there are differents textues and i dont know which choose.
The texture is really about the shape of your rod, as well as your preferences.
If you're longer, but thinner in girth, I've heard the wonder wave and lotus are ideal. It was a friend, thinner but longer than me, that recommended the wonder wave, which I bought first. I like the lady entrance, and often use it reverse (like doggie, reverse cowgirl or spooning), and the transparent ice makes it easier to clean and verify clean in my opinion. I wish they had a model with an extended set of lips in the entrance, but they would probably tear off way too easily.
If you're thicker in girth, the original might be better for diameter, while the wonder wave is tight for me, and even when I get in, it can be almost too good. I bought the original later and, by far, use it more today. When I want to have more than one session, I often unload first with the original, and then switch to the wonder wave if I go again, which is tighter and more intense, ideal for going a second time, especially if I'm not as thick and hard.
Personally, I find the wonder wave frustrating sometimes, either too tight to get in fully, or too good when I finally do get in fully, although my head is a mushroom significantly bigger than my stem, so YMMV. But sometimes I really like it for going twice in it, as the hold and suction (closing off the end cap) stays on and there's no chance it will come off on its own. It's sometimes really nice to barely move it and feel the sensation, especially if I've already ejaculated previously in it. But I only do that about 1 out of every 5 times. I prefer the original, which I find is just the right amount of pressure.
I cannot stress enough how it will be a cock-specific preference. Just using the two I have, the original is 1" (2.5cm) diameter, and the wonder wave varies from 0.5-0;75" (1.3-1.9cm) diameter. The shape of your helmet, your girth at the top and bottom, and other things will factor in. If you're thicker at the base, but thinner at the end and helmet, the tighter entrances and smaller diameters might be nice, like such a rod is preferable by most women for anal too.
Does it feel like going in a pussy bareback? No. But it feels good enough, and can provide for some effortless, even velvet-like, play. Keep the back vent open for air to escape, then tighten once you're in. Fully tight for total suction, or barely tight for a little air and more movement.
You can soak it in hot water, but be sure to drain the hot water before putting around your rod. Unfortunately it will cool down fast, so if you're like me, and want 15+ minutes, it will chill within 5 minutes. If you just want to get off, then soaking something like the wonder wave or another, varied and even tighter, diameter insert, might be ideal for you.
More psychologically, I do like the fantasy of slipping in bareback into the thought of my favorite starlet and exploding deep inside her. That might be why I enjoy taking my time, so your emotional attachment, and how much that impacts your session, may differ greatly. When I really take my time to enjoy the experience, using both inserts into different holders, fantasizing a 3-way, it is very erotic for me. So I didn't mind trying the wonder wave, and then buying and switching to the original which I use more, as having the variety is nice at times. Insert the common looser-mother, tighter-daughter, fantasy here.
But I'm probably not the best gentleman to advise most men, who just want to get off quick, but I do rather love the long sessions with more than one orgasm.