I know Slater will be selling them, not sure which brands.
There are a couple local reps you can buy directly from,...save shipping and worry. Highflyr reps Alphakronic and a gent named Jay Green reps BC Bud Depot in RI.
FWIW, if you are ordering online, from out of country, and customs catches you, they just confiscate the seeds and replace them with a letter explaining your shit was nabbed. No legal repercussions, you're just out the dough and probably just screwed up your timeline if you're perpetual. Buy local, avoid the drama