If my home had a Game of Thrones-style family motto, it would be “Honey, can you call my phone?” It’s the usual way to find your misplaced device. But it doesn’t work very well if you leave your phone on vibrate.
Instead, try activating Siri or Google Assistant. You’ll have to enable voice activation ahead of time. Then whenever you lose your phone, just walk around saying “OK Google, play Despacito.”
It only works with voice activation on. (And unless you change a setting , Siri turns off voice activation if you leave your phone face-down.) Having an always-on microphone means theoretically your phone can spy on you, plus it’ll beep whenever you say anything that remotely resembles its activation phrase.
But hey, it’ll also beep when you wander around your house calling “Hey Siri!” as if you’re coaxing a cat out from under the bed. Which you kind of are.