Url pattern and configuration for multiple websites with same domain but different context ?

Want to know the best approach for url mapping/patterns when we have multiple websites which have same domain name but context is varying like:

site1: www.domain.com/site1

site2: www.domain.com/site2

.....

In this scenario how should I approach:

1) Having single storefront. Keeping the configuration changes in url at web server and make the required changes to map the url pattern of website in hybris. Also Making the webroot of storefront extension as blank.

2) Create separate storefront extensions with varying webroot. And create url pattern based on that.

3) Any other approach?