I'd recommend the UD IGO line. Pure stainless steel, easy to build, not a cheap clone of another. Which UD IGO-W depends on how many coils you want to build, whether you want adjustable airflow control, and what size (diameter) device it will go on. Right now
101 Vape has some great deals, as does
Triangle Vape LLC
Also consider the UD AGI, which can be used as either a 22mm dripper or a genesis, by attaching the pyrex tank or not. They're running a special for $10.99 at 101vape.....they are typically about $30