Welcome to our absolute number 1 choice for finding safe & reliable drop shipping business suppliers of just about any product that you can think of. directory out there then our choice & hands down winner would be these guys: World Wide Brands
World Wide Brands have actually placed their head above the parapet by being the first company of their kind to take personal responsibility for the suppliers that they allow to be listed in their web directory - much more so than just about every other supplier's directory that we can think of.
There is a relatively small one time fee payable for life-time access to their directory, but this fee is nothing when you consider the numerous scammers out there who will happily run off with your hard earned cash.
The main reason we are such a fan of World Wide Brands is because not just anyone can join their platform and proport to be a "supplier". They (as a 3rd party company with no vested interest in any 1 supplier) take the time to fully verify each and every listing before adding them to their directory. So when you log in and do a search, you can have complete confidence about who you choose to work with.
So, when you log in and do a search "Drop shipping suppliers" or wholesalers, you can have complete confidence about who you choose to work with.