https://www.cnet.com/news/buy-4-tile-mate-trackers-for-35-get-a-free-google-home-mini/

As you'll see, you can actually choose from a variety of Tile four-packs, but they're all pricier than the Mates. I could make the case for the Pro/Style combo (two of each) for $75, as those models promise better range and louder alerts, but I really think the sweet spot here is the $35 bundle.

Here's the bummer about current-gen Tiles, though: You can't replace their batteries, which should last you about a year. Even though Tile's ReTile program will sell you a replacement for less than a new one, it's still kind of annoying.