modify Response Object returbed by an endpoint

Question

I have an endpoint method that returns a List of Items, I wonder how can I intercept this list to apply some modifications for example:

@PostMapping(value="/someUrl")
public List<Items> find(@RequestBody Command cmd){
   //do something
   return arrayListOfItems;
}

I tried to do using HandlerInterceptor, is it possible to get the returned list from the HttpServletResponse here?, if not what is the best solution ?

public void postHandle(HttpServletRequest request, HttpServletResponse response, Object o, ModelAndView modelAndView) throws IOException {
                    
           //how can I get the returned List<Items> and modify it here, before returning it to the client 
}