Multiple orders from the top half of the list. My experiences:
PeakSeedsBC - my favorite, some really unique plants and good freebies
JOTI - slow to ship but very nice genetics and freebies
Hemp Depot - amazing service and lighting fast shipping, lots of interesting varieties
Mephisto Canada - excellent service, genetics, freebies.. if you can catch a drop
GTA Seedbank - solid transaction, lots of choices
Next Generation - good to deal with, not sure of genetics the Timewarp grew well but wasn't nice to smoke
True North - never had issues personally, but prices are high and I see a lot of bad reviews, sketchy inhouse brand
JAH - he has very obvious and public mental health challenges, which is unfortunate. Might be worth a shot if you just want some cheap pollen chucks to play around with.