Wholesalers of products are found everywhere and in every area and hence if you need to find some, you will first have to figure out what product lines you are interested in. You cannot expect every wholesaler to have all types of wholesale products that you may be interested in and this is the reason most retailers would deal with multiple wholesalers from different locations at any one time.
If you depend upon a single wholesaler for all of your product requirements, you would be disappointed soon as anything going wrong with their product supply would see you out of business.
So make sure you look for multiple wholesalers online that you could contact and establish ties with and they should not impose any restrictions upon you. Some wholesalers would make all of their wholesale products available to anyone willing to shop with them and the advantage of working with such suppliers is that you do not have to maintain a specific volume of purchases within a specific time period to be able to continue trading with them. On the other hand, this may also mean you may not be able to get the best available prices for these products and sometimes you may even find some retailers selling at the same prices as you are getting them at.