Tim, the Variable Star Section CCD Target List has some shorter period eclipsing binaries that might be useful if your aim is to test your system. The Beginner’s Category has a few systems that are 1 day or less. Ones around atm include EG Cep and TZ Lyr.
Given the short nights atm, you would need very short periods.
You could also look at any SU UMa dwarf novae that are in outburst. CVnet lists current ones. V1227 Her (UGSU, eclipsing, orbital period 0.064419 d (92.763 min)) might be a good one for you. There is a Journal paper on it here.