@Danielle N ,
I would also recommend reaching out to all past purchasers and asking them for a review. For this to be most effective, I would incentivize the review request.
For example, send out an email to everyone who has purchased in the last year (or longer). The email can say something along the lines of “leave us a positive review and you’ll get 20% off your next purchase.” For the first batch, you could even make it a larger discount, maybe matching your BFCM discount, to get a couple reviews on various products. Then you can lower the discount level for future review requests.
In general, I typically match the discount level in my review request email to my welcome series. Meaning if I have a welcome series that offers 15% off the first purchase, the post-purchase/review email also offers 15% off. This simplifies things a lot.
Hope that helps!