Virtual Assistant, Amazon listing & SEO expert. Social Media manager

Hello !
I am seeking someone very knowledgeable in listing on amazon, possibly Etsy, and poshmark as well.
(Not a requirement for poshmark and Etsy)
Will need items listed,

I will need social media platforms managed. Content made, and posted. (I will provide pictures you add text.

Know how to work with the algorithms on YouTube and IG to allow high ratings.