Loved the small form factor of the SE, but my original one was only 64GB and I wanted to have a lot of music and books on it, so I went for an Apple-refurb 128GB one year instead of upgrading to a newer iPhone model, and retained the original 64GB model as my "spare in a desk drawer".
Finally did upgrade to later iPhone hardware, but preferentially still use my SE for phone-like purposes (phone, texting, 2FA, quick checks of news, stocks etc) and now rely on the great screen of my sunflower yellow XR in WiFi-only mode for long reads -- online news subs, books-- and rewatches of TV or movies I've seen before. For digital format magazines and new-to-me movies or TV, I more often use an iPad Pro or my MBA.
I suppose I'd be a candidate for the iPhone 13 mini, but the SEs still work fine for the assigned purposes, and same with the XR, so I'm passing on iPhone upgrades in 2021. Saving up to upgrade next either my iPad mini 4 or an aging 10.5" iPad pro.