Best service I've had in Ontario is ProvisionSeeds
There's constant updates about your order and they always answer emails fast
I'm running there own version of PKUltra and it's A1
I also run Dr.GreenThumbs gear and never had a problem in 4 years and 7 different strain some say he's on the pricey side but after you grow some out you'll know it's worth it and want to try everything he offers
I'm sure there's others that are great but I'm sticking with these two as they've both proven to me there genetics are worthy of my time & space
Peak seeds isn't really a seed bank, it's his own site. As far as Canadian breeders go he's top notch. He really knows what the hell he is doing and is quite responsive to emails. His prices are the best around and his gear is some of the best around too. For a first timer I recommend one of his hybrids.
How about ordering from any of the Canadian seed banks if you live in the states?
I'd say your chances of the package going through are a lot higher than if you order from Europe just based on sheer volume comparatively.