Welcome to Bladeforums.
Here is a list of paid dealers here at Bladeforums. You can link to these dealers in posts. The only exception to putting a link is a post from one of these dealers is "deal spotting". If I'm mistaken, a mod or someone else will correct me.
https://www.bladeforums.com/threads/paid-dealer-members-list-updated-10-13-2019.1089879/
Most of the "bigger" well known knife sites are good to go. Even those not on the list.
I'd be careful of the da bay and Amaz**. Some of those 3rd party dealers have knock off products.