Social media channels (e.g. LinkedIn, X, Facebook, and Instagram)
Search engines with reviews and ratings (e.g. Google and Yelp)
Job sites with reviews and ratings (e.g. Indeed and Glassdoor)
B2B rating and review sites (e.g. ClearlyRated and G2)
BONUS: Enable reviews and ratings on your own website.
While these are the most popular places to manage your online reviews and ratings, don't neglect influential niche sites for your industry, audiences, or locations.