Publish 2 Business Listing On Amazon and Walmart Marketplace + suggest other marketplaces

I have 2 displays that I sell on etsy and Shopify. I am looking to add these listings to my amazon business account. I tried doing it but I got stuck with a couple of the fields so I need someone that knows it well enough to go through the entire process. I can provide the content to post.

If you are familiar with other US based marketplaces that you can help post these displays on, please feel free to make the suggestion.

This is the product that we sell: https://giantbraceletdisplays.com/product/10-tier-wood-bracelet-display/
The other one is a very similar version of this with a darker color.

I am also looking for someone to help set us up on Walmart marketplace.