Best gels for Godox V860II and Flashpoint XPLOR PRO600?

Hey all!

I am investing into the Godox light system; moving away from my Nikons. I previously used the SB-700, which conveniently came with some diffusers to help balance the color of light coming from the flash. I have seem all kinds of gel solutions on the market for speedlights and strobes, and was wondering:

1. What gels, in your experience, have worked best for the V860II and Flashpoint XPLOR PRO600?
2. If not for the V860II and XPLOR PRO600 specifically, do you have recommendations based on gels you've used for similar equipment?

Thanks for your time and help!