I have the one from Baseus. It's 10.000 mAh, can charge via USB-C connector (yep the connector works both ways) or through MagSafe. It holds on really good on my 14 Pro and can charge it about two times from around 10% to 100%.

I got is as a present and love it, since I don't use my phone that often when charging, but it's nice to be able to move it around when charging. The only downside (if I cared that much) would be the thickness of the power bank, which is about two iPhone 14 Pros. But again, I don't use the phone while charging, so ... meh, it's good. :)

edit: I see that you mentioned the one with the kickstand. I don't have that, because I don't need it.