Build me a website on shopify

Hi I want to make an e-commerce website for selling sunglasses / phone covers / fabrics and socks
The site has to be made using a shopify theme
The developer has to make the site Seo Friendly

Suggest a theme
Upload atleast 100 products across the various collections
Create site map
Suggest meta tag H1 tag etc for the site and products
Selling in india
Also integrate Facebook and Instagram
Chat
Other apps to suggest we can integrate
Paid as well as free