Lots of heads are compatible with the peak design plate.
https://support.peakdesign.com/hc/en...ure-work-with-
For travel I have a Manfrotto carbon fiber tripod and have several different heads. Any of them with an RC2 plate look like they would work for your system. It's a tough question, but I will say don't waste your money on a cheap tripod, they just end up frustrating you to no end.