I currently have a base recipe for soleseife (I only change colors mostly, rarely additives) and another recipe that might be base for salt bars (still testing this).
My rice soap recipe has since been tweaked to adjust oil amounts but it's my base recipe now - sometimes it's plain, sometimes colored, sometimes it has different additives.
My high lard is the same. Haven't tweaked the oil amounts though coz it's my mom's favorite as it is but I change colors n additives here too.
I have a triple butter soap that's on its own that's also since been tweaked to adjust oil amounts. I don't usually change anything in this one coz it's too costly to experiment with and takes too long to cure. Plus it's one of my bestsellers the way it is.
Out of the five I've currently settled with, I only sell three. Soleseife, rice and butter ones.
Might be having one for kids soap soon, I hope.