https://reviewed.usatoday.com/smarthome/best-right-now/best-smart-water-leak-detectors
https://www.pcmag.com/picks/the-best-smart-water-leak-detectors
https://www.nytimes.com/wirecutter/reviews/the-best-smart-leak-detector/
it looks like Moen one has good review but I prefer ones with audiable alarm.