Yes. eSIMAdvice currently lists 47 Stellar eSIM Samoa plans.
The lowest displayed Stellar eSIM Samoa plan is Samoa · 500 MB · 1 day · 4G · + Free VPN, at $1.26.
Samoa · 10 GB · 1 day · 4G · + Free VPN is the current best-value match by displayed price per GB: $1.29/GB ($12.89 in total).
Yes. Eligible displayed prices already include the active ESIMTWEAKS coupon where the provider rule applies.