SM Manager and Content Creator

I am starting a small project of selling some PDFs among other things and I am looking for a VA that is available at least 20 hours a week.
The tasks in line at the moment is : Posting the content I have already created , Help me promo on FB groups and other platforms, and perhaps 1-2 tasks related to the project that can be determined in a weekly bases.
Would be great if you have a little knowledge about Etsy, Amazon, Pinterest, linkedin and posting creativity on FB Groups. but we can learn and create these tactics together.