You guys should try the dating app Hinge.

It basically filters out people for both parties. You can set your preferences (including height) and so can the other party. I've found through this way you'll more likely talk to people who actually put your height as a preference :). It's also completely free and it's pretty popular.

I've actually done pretty decent with it so far.

I hope you guys will have have the same luck as I do.

For the record I have no height preference (I set mine to lowest height and highest), but all the people coming up in my results have all been from 4'11 to 5'8 and I am listed as 5'7.