what exactly are you looking for....let's narrow it down a bit more for your taste
1. do you want an internal battery
mod or an external battery mod? I suggest external battery because once the internal battery dies your mod is useless
2. do you want something more boxy shaped or tube/pen shaped?
3. you say at least with VW but are you wanting Temp Control or not (keep in mind just because it has TC doesn't mean that you have to use it)
4. do you want single battery or dual battery?
5. what price range are we looking for
6. do you just want a mod or a starter kit
7. how many maximum watts do you want (20, 30, 50, 75, 80, 100, 200)
um...that's all I can think of at this moment