Listing products on Amazon

Hi,
I have a small company selling Christmas Ornaments in Holidsy season (Christmas)
I uave a physical location. But I wanted to expand and start to sell them pnline during Christmas Time which usually starting here from middle of October till End on December.
So, I have about 320 items needs to list them on Amazon . I already have a business account on Amazon . But needs help to list those items professionally and do all necessary work like SEO, organics, key words to be sure that the customers see them when they search for the christmas ornaments .
I have the products info, SKU, barcodes, descriptions, images. I buy from some brands here in the US.
So, our msrket will be US market.
- I have slso a business account on Etsy selling the same products so, you can get some ideas that we have been selling them on Etsy since 2021.
It is just I dont have enough time to list them on Amazon so, I need a help from independent freelancer who fone such work similar to list products on Amazon so, it can be easy for him/her to do the samething again .
My kind of products easy to list it is a small item not big if you searched on christmas ornaments you will see how it looks .
- I also, wants to see if we are going to list them on Amazon as FBA cause it will help show them to over 43M customers has a Prime account. So, we can ship them to Amazon warehouse.
Attached just some samples of photos of my products.
Thank you and hope to hear ftom you soon.