How to attract more users to my price comparison website DTashion?

I've developed this website https://www.dtashion.com in early 2019 and never looked at its SEO, Google presence or anything much about it.

Recently when I saw other similar websites are actually getting huge amount with similar websites. So I start working on its SEO. So I'm trying to figure out some best of the tips n tricks to get steady user base and earning though.
Any help appreciate.