Just buy this Spigen Tempered Glass Screen Protector [GlasTR EZ FIT] designed for iPhone 13 Mini [Case Friendly] - 2 Pack https://www.amazon.com/dp/B095RQPWVY/ref=cm_sw_r_cp_api_i_Z0J752JY8TESMQB4TFXH?_encoding=UTF8&psc=1

I made the change in October from 2016 SE to 13 mini. Using the same 5 watt charger, staying away from fast or wireless charging so the battery doesn't degrade faster. For screen protector went with Spiegen, been happy with it.

https://www.amazon.com/Spigen-Tempered-Protector-designed-Friendly/dp/B095RQPWVY/ref=sr_1_1_sspa?crid=3BGRQANYU6P6R&keywords=spigen+iPhone+13+mini&qid=1642037806&sprefix=spigen+iphone+13+mini%2Caps%2C133&sr=8-1-spons&psc=1&smid=A2SFKRF5TPZMT5&spLa=ZW5jcnlwdGVkUXVhbGlmaWVyPUEyUDlHQ1hHU01QTksyJmVuY3J5cHRlZElkPUEwMDM0ODIwMzVVRktSQUlGRzNKUCZlbmNyeXB0ZWRBZElkPUEwNDUyOTg3M1FWRFlLWDYzNzRDTyZ3aWRnZXROYW1lPXNwX2F0ZiZhY3Rpb249Y2xpY2tSZWRpcmVjdCZkb05vdExvZ0NsaWNrPXRydWU=

It will take a little while getting used to the slightly larger size. Recommend using reachability and keyboard shift.