I’m using the wahoo speed and cadence sensors. Easy to set up. Not sure where the speed sensor would mount on that type of bike, but the cadence sensors can be put on your shoe. They sync using bluetooth. Someone in the reviews used it on a spin bike with zwift.
Wahoo RPM Cycling Speed and Cadence Sensor, Bluetooth / ANT+ https://www.amazon.com/dp/B01E0YRQIA/ref=cm_sw_r_other_apa_i_vR1mCbTMW1PXW