Where Can we Find Wholesale Supplier also how can we Check that they are authorized or not?

You may discover that a brand new LLC operating with the address of a registered agent and no US presence will not be able to establish an account with most authorized wholesale distributors, which is why many sellers in a similar position fall victim to unacceptable suppliers and lose their money, merchandise and Amazon accounts when they attempt to do business on Amazon using FBA.

Good luck to you, you will certainly need it.