If you’re talking about a pre-owned phone - the iPhone XR (iPhone 10) is known as a very fast phone for a relatively low cost…people look for them, like a certain older used car that had good performance and durability, they have a good reputation.

That said, we currently have an iPhone 11 Pro Max, 256g. This is the maximum screen size they make, which I like for viewing photos. The 3-lens camera is pretty good too. The larger 256g storage would only be necessary if you take a lot of photos and videos.