Yes. eSIMAdvice currently lists 16 eSIM4Travel Puerto Rico plans.
The lowest displayed eSIM4Travel Puerto Rico plan is Puerto Rico · 100 MB · 1 day · 4G · Movistar, at $1.02.
Puerto Rico · 30 GB · 10 days · 4G · 3 GB/day Claro is the current best-value match by displayed price per GB: $2.73/GB ($81.85 in total).
Yes. Eligible displayed prices already include the active ESIMADVICE coupon where the provider rule applies.