Stems compatible with Token A-Box headset

Hi everyone

I’m looking to get either an integrated one piece handlebar stem combo or just a single stem that is compatible with Token A-Box headset and its spacers . It’s for Haro Buzzard Carbon 2A bike. It has an internal routed stem with brake cables going from stem into the headset and frame.

I’m having a hard time understanding if I can just use any stem with this headset. Quick google check shows BLKTEC is the most compatible brand, buts its stems are quite expensive. I’m looking for some budget alternatives.

Thank you