Yes. eSIMAdvice currently lists 10 Ohayu Latvia plans.
The lowest displayed Ohayu Latvia plan is Latvia · 3 GB · 14 days · 5G, at $6.74.
Latvia · 50 GB · 90 days · 5G is the current best-value match by displayed price per GB: $1.05/GB ($52.64 in total).
Yes. Eligible displayed prices already include the active ESIMADVICE coupon where the provider rule applies.