Apple's AirTag tracker will probably help you find your stuff, but

Add an AirTag to Find My to keep track of personal items - Apple Support

What to do if you find someone's lost Apple AirTag - Gearbrain

Apple AirTag Review: Tracker Leverages Billions of Devices

Apple AirTags: How to Protect Yourself From Being Tracked - CNET

Apple AirTags: What You Need to Know, by Lance Ulanoff

24 Things You Can Track with Apple's New AirTags - The Mac Security Blog

AirTags can be used to track, stalk people

10 Surprising Things You Can Keep Track of With Apple AirTags

Apple AirTags: should you buy one? - Which? News

Are AirTags a Stalker's Dream? Maybe

Apple officially unveils its lost item finder, AirTag

How AirTags Work

Apple AirTags review: Find My network and UWB make them top notch - Stacey on IoT

AirTag stalking and how to protect yourself