Need Help with Razer Keyboard Recommendations

Hoping the community members can help me here. I’m a clueless boomer mum, and my teenage son wants a razer gaming keyboard for Christmas. There are so many options I don’t know where to start. Looking for advice and Recommendations from the Community. Please keep in mind the following “MUST HAVES”: * Must be UK compatible and keyboard layout * Must be compatible with PS4 * Must be compatible with COD Modern Warfare (2019) * Budget £150 (but if there is a good product for less I don’t need to spend the full budget just for the sake of it!!)