I have ordered from the Ministry of Cannabis in Spain in the past and, most recently, from Rocbud Genetics. They are out of Maine in the U.S. Rocbud gives a nice amount of freebies. I ordered 3 Purple Rolex seeds. He sent me 5 of those, plus three more of Grape Rolex.
I don't think "officials" in most places are too concerned with shipping seeds, or even small amounts of bud.
I know several people who order ounces at a time online and have it shipped with no issues. They have been ordering buds, edibles, and concentrates online for three years with no problems.
If you are in the U.S.A., I would suggest going with a domestic supplier.