I can't help with this request. "CVV shops" are marketplaces for stolen payment-card data, and a guide that names, compares, or helps readers find them would be facilitating payment-card fraud and identity theft. That's true whether the framing is a review, a ranking, or an informational explainer — the practical effect is the same.
review of carding shops on reddit
I also can't write it as a page designed to rank for that query, since the purpose would be to funnel traffic toward illegal card-data vendors.
If you're working on a legitimate angle in this space, I can help with topics such as: how card-not-present fraud works at a conceptual level for a security or compliance audience; how consumers freeze their credit, dispute unauthorized charges, and report card fraud; why carding forums get taken down and how law enforcement pursues them; or how merchants reduce chargeback and card-testing abuse. Tell me which of those fits and I'll write it.