Sorry my response is somewhat off topic. With ever increasing restrictions here in the USA, I'm not sure I want to invest in more drones. Besides my endless hobbies. my flying backup is, spending more time at my RC club field where I fly RC...
The best backup is another copy of what you already have so I'd say another Mini 5 Pro. All your accessories are interchangeable and if you crash one then that becomes a parts bin for the other. If you really want something different (or cheaper)...