Also the Roche LS-01 is a good light and a perfect MT-G2 host.
But if you prefer 26650 -> Yezl
With coupon only 24,99$ + 2,99$ for the extension tube if wanted:
I have the Yezl with the ext. tube and I have to say… great light. The size is just perfect and the built quality very good.
Or maybe a King/Kung? I like those, because they are thick and short.