Get some cheap stems and experiment. Years ago it was apparent that bike fit was an art, So I collected a set of cheap stems. When I build a new bike, I can try different stems before spending big $'s. The performance of cheap stems is just as good as the big $ ones, they just look cheap.
It's a small expense and they are available to loan to family and friends.
No sooner than you get an expensive stem that you discover you need to move the seat back/forward. Ride the cheap stem for a long time to make sure.
I just put a new frame on my mountain bike. Frame angles are different enough to go through the experimenting once again, though I'm getting more proficient at fitting both the wife and me as the years go by.
But, I'm never sure what works best until I experiment over a range of adjustments over a long enough period of time to adapt to them.
I'm not a believer in paying for bike fitting for that reason.
Al