Hello all. I'm in the midst of a total bathroom renovation and had a question or two for the resident experts

My old shower had a single shower head with which I'm looking to replace with a new shower head and separate wand assembly. I'm not fond of the integrated units. I was wondering what the best approach is for such a design. Should I T-off the supply lines to two different mixing valves, or is it recommended (or even possible) to bring the lines to the shower mixing valve, then branch the two new fixtures off of that? Or maybe even a custom mixing valve with multiple outlets.

Dumb question? I can live with that

Thanks in advance.