It has been a while since your last post. Did you find a site for the review?
I was thinking, maybe you could start at www.metacritic.com it has a user-review section, although these are small reviews.
If you are looking to write longer reviews, maybe try a site like: http://www.gameskinny.com/write-with-us/ It seems like a good opportunity to start as a review writer.
As for me. I am currently looking for people who want to review the pay-what-you-want game Hyper Time: Disruptor. The game is available for download here on itch.io (https://laserbrick.itch.io/hyper-time-disruptor)
I think it helps to post the link of your review (when it is accepted) everywhere you possibly can. Of course it is always a good idea to post it somewhere near the download page as well. When you have your review, we can add a 'reviews' section in the game description where we can link to your review (as well as others).
Succes in your journey to become a great game reviewer.