For myself, I have been using 30ga Kanthal. I do ten wraps around a 16th drill and get about 2.0 ohms. The 30 gauge is pretty tiny, but when I started, most people were using either 28, 30 or 32, so I chose the one in the middle.
It works well for me, and fits easily into my toppers that have holes in the posts, even if I do double coils, so I haven't changed gauges.
I do micro coils, and fire them on my MVP to heat them before squeezing them. The MVP checks the ohms as well. Just don't forget to let go of the fire button before squeezing the coils. (Don't ask me how I know).
Coil building isn't as scary as it sounds, and you get a really good feeling when you first start and get a working one!
I won't ask because I know