@bookwormaprilis correct about trade shows. My wife and son have a brick and mortar store and have been to three so far this year with two more to go before November.

Virtually every state has some. Depending on the product lines Las Vegas and NYC have some of the best.

THAT brings up the following since your question illustrates a certain LACK on knowledge about selling.

The first question is -- Are you authorized IN WRITING by the BRAND to sell their items on Amazon? That means from the BRAND, not some random wholesale source that can NOT authorize anything – they only SELL.

More and more brands have provided a "whitelist" of their approved sellers and if YOU are NOT on the list you will be stopped in your tracks and probably hit with an IP violation.

The second (and probably more important) question is -- Where are you sourcing your products? Are you buying direct from the brand or through an AUTHORIZED wholesale source?

NOT every seller at trade shows is an actual AUTHORIZED Distributor -- watch your back AND your wallet buying there!

NOTE – DOING RA IS NOT PERMITTED ON AMAZON. PERIOD

As to the sourcing I go back 20+ years for my first products and I ended up with them because I could not find supplies for one of my hobbies (since gone dormant).

I looked around and found one of my old packages and called up the company. Found out they DID/DO sell wholesale and only required something like $500 initial order and a tax exempt number.

Filed with the state for maybe $10 and put an order on plastic for the $500+. Took about six months to pay off the card balance.

Kept adding suppliers and it became easier since they all ask for trade references and I had ONE. Found another small company that didn't have a large footprint and they let me in and again a small opening order.

NOW with TWO references it got easier for larger companies in the same or similar industries -- competitors of company #1 or #2 since competitors LOVE to compete for your business!

Find local or regional businesses looking to expand distribution, new companies just starting out ( I have had a few that I bought from and they failed.)

Something that you know about or WANT to know about that doesn't have 10,000 offers on Amazon.

The possibilities are endless but it is VERY hard if you start with the 'big boys' in any industry. Those guys want some large orders. I had one manufacturer of products that I was sourcing from hobby supplier #1 but I wanted to go direct to save about 20%. They wanted $5,000 minimum and a pallet full of two or three SKUs as a starter. Did NOT happen.