I know this post is nearing a year old but in case anyone comes to check...
Magma Heritage
CCToys
Junie Moon shop
Are all good places to buy new releases/legitimate dolls.
If you start searching secondhand there are several Facebook groups... lots of Facebook groups!
eBay is riddled with knockoffs (usually overpriced) so if you’re new to Blythe I’d go to the fb groups and ask for advice.
Don’t go to thisisBlythe.com - it’s all knockoffs and stolen customized pictures and overpriced last I checked. Someone took over the site after the original creator let the domain lapse.
If you want to get into it for customizing age you do want a cheap knock offs then aliexpress is the way to go. Not real Blythe quality but not bad to destroy your first customs on 😂