I only do single no fancy wire builds myself too
I like the SXK Nebula Wine tank a lot, to me it's an easy build on a dual posts design for a single coil build, easy to wick with no leaking issues.
$12.87 SXK Nebula Wine Tank RTA Rebuildable Tank Atomizer - authentic / 5ml / stainless steel + glass / 22mm dia. at FastTech - Worldwide Free Shipping
Kayfun lite or Kayfun 3 are also great for easy single coil builds, I have to play with wicking it sometimes because of leaking though, I am hoping to get better at it.