ReadMyACARS.
Skywest and Alliance both have active programs for ADS-B equippage on their F100 fleets. In the case of XR I believe they already have a a/c fitted with GNSS recievers for ADS-B.
Same for Alliance with their F70 and F100. Of which the first a/c flew with ADS-B equipment (GNSS) yesterday.
Cheers.
K-Ex.