Yes. eSIMAdvice currently lists 21 AlpineSIM Dominican Republic plans.
The lowest displayed AlpineSIM Dominican Republic plan is Dominican Republic · 100 MB · 7 days · 4G, at $0.76.
Dominican Republic · 20 GB · 30 days · 4G is the current best-value match by displayed price per GB: $1.82/GB ($36.37 in total).
Yes. Eligible displayed prices already include the active AFFINCO coupon where the provider rule applies.