Most of our seedbank
sponsors appear to ship to the United States of America.
Some Dutch breeders don't, or at least didn't in the past.
Sensi Seeds (sponsor) is one such that comes to mind. When I wanted their seeds, I simply bought from a seedbank.
Ones that I've had good experiences with in the past few years are
The Vault (sponsor) and Gorilla Seed Bank (former sponsor). Farther back in the past, I used Attitude (sponsor a LONG time ago, IIRC) with no issues but it's been ages.
Members who've used the business seem almost 100% happy with
Seedsman (sponsor). Once in a great while, there's some kind of minor issue (trouble with the credit card payment option, needing help with their website, little things) and their forum representative seems quick to assist.
True North Seedbank (sponsor) had an issue with getting orders out in a timely manner a while back, but it appears that this was largely due to running two major sale events not long after Canada (the entire country) legalized, lol, so it's understandable if they got a little overwhelmed, as they're located in Canada and were probably buried in orders. I think I read that they've caught up on things now and it's back to normal.
There are several other
sponsors that sell seeds, and they collectively have a 99% or better positive reputation here, so you should be good to go with any of the ones that don't have some kind of notice about not selling to us.
You might find it useful to use our forum's search routine (magnifying glass icon at the top of every page here) to search for threads/posts about our various seed vendors (seedbanks and breeders) by name. Although we have members from all over the world, the majority of them are located here in this country, so it's likely that you'll be able to find out whether they ship to us - either directly, by reading someone's statement to that effect, or indirectly, by seeing that they've got products from the business.