there's a ton of reputable seed banks, check out some of our site sponsors, or try places like single seed centre, the attitude, or some of the stateside banks if you're in the us of a..
if you order from a stateside bank, you don't really have to worry about stealth so long as you're also state side.. if not, most banks offer some sort of stealth or gauranteed shipping options for a small'ish fee..