Realtour B+ gone dumb - what is comparable in connection window?

My Elite Realtour B+ resistance stopped working (company says it’s mechanical issue). I’d like to still use it w/a Garmin speed/cadence sensor. However, when pairing w/Zwift I have to choose a “dumb” trainer for power purposes. Of course, my trainer isn’t listed because normally it’d be controllable.

There are a number of Elite trainers listed. Which one should I choose to get a comparable power curve for Z Power?

PS - I have a Powercal HR strap, but when I tried that as the power source, the readings were way too low and slow to respond to changes. I don’t have any other power meter to substitute.