Yes. eSIMAdvice currently lists 18 Breeze Guernsey plans.
The cheapest Breeze Guernsey plan is Guernsey · 1 GB · 7 days · 5G, at $4.49.
Guernsey · 200 GB · 90 days · 5G has the lowest price per GB right now: $1.58/GB ($316.49 in total).
No coupon is applied to these prices right now.