Best lube?

My fiancé and I are TTC. I unfortunately have hpv warts and hsv2 (from a shit head that chose not to tell me he was infected, not my fiancé).

My skin can be pretty sensitive. Also, I am one of the 10-40% of women who have difficulty orgasming from intercourse, but can orgasm from clit play (although it takes a bit).

I have found lately (since moving in with my fiancé, which we are able to be sexual more frequently) that my labia minor/inner labia gets irritated and swollen easily when we practice “edging” in order for I to orgasm during intercourse. I believe it getting irritated is from the friction of playing with his fingers down there.

So, I think some lube would help to avoid skin irritation. Any advice on best lube?