You may think they are expensive but not always compared to some now popular and cool dude brands but Nicolai will make you a great FS in whatever size you like and with whatever wheels you like. They don’t publicise their capability/USP enough in my mind.
My wife at 5′ has a perfect fit 140mm FS with loads of standover, just the right height seat tube etc etc.
The Ion range can be made very small indeed and has a range of travel options. The Helius range pretty small with any wheel size. Of you go custom anyway you can choose everything else, seat angle, head angle etc etc.
The downside is depending on how busy they are, and it looks like they are this year, it can be a 16wk wait but not always.