Apple

I feel like this would result in so many broken phones that most companies would not want to enter this market. Wouldn't be surprised if you could find something on Alibaba or Amazon, but I doubt it's much of a market.

I don’t know that they have one, but did you check Spigen’s website? They have a ton of variations

TwelveSouth used to make a thing called “Book Case” which was a stick-on at the time. Let’s see if they might launch a magnetic one for the iPhone 15?

I recall seeing some addon that otterbox made for their cases that was essentially what you want - idk how well itd work without the case but might be worth looking into

Edit: it’s called an otterbox magsafe folio, but it’s meant to wrap around a case so it’s probably gonna fit weird if you don’t use a case.