None of the blowjob imitators are anywhere close to a real blowjob. No way can any material duplicate a hot sloppy bj.
I suggest going for one of the fleshlight girls mouth fleshlights because they have a texture to them. They aren't realistic but they feel fantastic and worth the price. You can close your eyes and pretend it is a real bj and since sex is mostly mental with a good imagination it can feel real good.