If you are struggling to sell your inventory then it may not be an attractive proposition for another seller.

This is not a platform to look for bulk buyers. There are companies who will buy your inventory from you and sell it on. However you need to be prepared to make a loss on it.

If the inventory is in Amazon you will need to have it removed. Also look at Liquidations as a way of getting some money back

Often the easiest answer is to reduce the price and sell it through. This will mostly get you the best return on your inventory.