I have a eCommerce website which have many digital prodcuts and I am using different keywords for different products

For example :

Keyword One For www.example.com/productOne
Keyword Two For www.example.com/productTwo

Now Keyword One is ranking on Page 5 of Google and I want it to bring it to First page.

Should I submit my website to different Directories using Keyword One and URL www.example.com/productOne .... OR I should use URL of Home page ?

and is it good to submit Different URLs of...

how I should submit my website to different directories ?