I used this one

topk(10,
    sum by (http_route, http_request_method, method_route) (
        label_join(
            increase(http_server_request_duration_seconds_count{
                job="$job", instance="$instance", env="$environment", appName="$appName", http_route!=""
            }[$__range]),
            "method_route", " ", "http_request_method", "http_route"
        )
    )
)