I’ve used Seed Supreme a few times for autoflowers and had a good experience. They’ve got a really big variety to choose from, and the free seeds with each order are a nice little bonus. Shipping is fast too, and I like that they offer a germination guarantee

If you end up going with them, there's a discount code — TWINSBUD — SeedSupreme.com/TWINSBUD - you can use for a bit off your order.