I recommend the hybrid, Sliquid Silk, which is a mix of water-based lube with some dimethicone added. link. It's quite a different formula than any of the others offered by this company and in my opinion, it's their best lube.

If you don't want to try Silk, then I'd highly recommend getting the Organics Sampler Cube. link The Naturals line has the base ingredients to which they added organic extracts to form the Organics line. The Naturals sampler includes flavored lubes as well, link

PS, The way to tell the quality of a silicone lube is by looking on the ingredient list for the expensive ingredient, dimethicone. The closer this is to being the first ingredient, the higher quality the lube is. Sliquid lists it as the first ingredient in their Sliquid Silver