There are tutorials for this that you can already look at like here.
https://support.wix.com/en/article/corvid-tutorial-capturing-and-displaying-ratings
https://support.wix.com/en/article/corvid-tutorial-adding-ratings-and-reviews-to-a-wix-stores-site
Check out Yisrael’s example for ratings by user as well.
https://www.grampsworkbench.com/Examples/Ratings-by-User
If you use the search function in this forum too, you will find many previous posts about dynamic page ratings too.
https://www.wix.com/corvid/forum/community-discussion/adding-a-star-rating-to-a-dynamic-page
https://www.wix.com/corvid/forum/community-discussion/adding-a-rating-to-a-dynamic-index
https://www.wix.com/corvid/forum/community-discussion/how-can-i-add-rating-stars-in-a-dynamic-page
https://www.wix.com/corvid/forum/community-discussion/comments-reviews-on-dynamic-pages
https://www.wix.com/corvid/forum/community-discussion/review-and-rate-dynamic-pages
If you want somebody to do it for you then check out Wix Marketplace.
https://www.wix.com/marketplace