Last playthrough I went with FAR + KW Rocketry for fairings. I prefer KW over B9 because B9 is mostly a spaceplane pack, and I prefer rockets to planes.
I also prefered KW's fairings over something like procedural fairings cause you had to actually build your probes keeping in mind they had to fit inside one of the fairings you have unlocked, instead of just being able build a rocket that looks like someone stuck a beachball on a matchstick.
Alternatively, you could install NEAR, which is effectively FAR-light. It's more forgiving than actual FAR, made by the same people.