A 48x24-inch desk gives you enough room for a 27-inch monitor and your favorite...

https://camilassuperwords.readspirex.com/posts/what-are-the-actual-dimensions-of-a-27-inch-monitor

A 48x24-inch desk gives you enough room for a 27-inch monitor and your favorite controller without feeling cramped. Keeping at least 36 inches of clearance behind your chair helps you move freely and stay comfortable during longer sessions