One of the marquee features of Apple's new iPhone 12 line is MagSafe. But unlike the old MacBook charger connector, this is an enhanced version of contactless charging that lets the new iPhones securely snap to compatible chargers, as well as offering new flexibility with cases. The problem is that all those new MagSafe accessories (from Apple and, soon, third-party manufacturers) are pricey, starting at $39 and heading northward from there.
Instead, you can stick with existing contactless chargers that use the Qi standard. They'll be limited to half of the 15-watt charging capacity of MagSafe, but if you're just leaving your phone by the nightstand or desk, that won't matter. Your current wireless charger will work just fine, but if you're in the market for a new one, this Anker model has served me well for months: The standing models like this avoid the "missing the target" problem of the flat wireless chargers. It's available for under $20 and its maximum charging power is just 5 watts but -- ironically -- this product doesn't include a power adapter in the box either. That said -- OK, Apple, I'm agreeing with you -- I did already have plenty of older adapters on hand. I've also invested in some USB-equipped power strips over the years, which obviates the need for wall warts altogether. (Yes, many of these now have USB-C built-in, too.)
Anker also offers a 7.5-watt version for closer to $30. If you'd like a cheap wireless charger with a power adapter included, this lay-flat RAV Power model can be had at Amazon for under $18.