According to dpreview, the recently released Sony a7R IV (B&H Photo Video/Adorama/Amazon) is currently best camera in the world they have reviewed. a7R IV received 91% overall score dpreview gold award.
The Sony a7R IV is among the most capable cameras we’ve tested. It makes a compelling case that the days of choosing between speed-oriented cameras and resolution-oriented cameras are coming to an end. It wouldn’t be our top choice for sports and action purists (all those megapixels result in many megabytes of storage), but for those users that need this resolution on a regular basis and want to be able to photograph fast-moving subjects when necessary, the Sony a7R IV is the best option on the market right now.