The Redmi K30 Pro Zoom Edition is a cheaper alternative for those with their sights on the Mi 10 Pro, and it performs as expected. The Redmi flagship's cameras have now been tested by DxOMark and found to perform better than phones like the iPhone 11 Pro Max and Galaxy S20+.
https://www.notebookcheck.net/The-Redmi-K30-Pro-Zoom-Edition-outperforms-the-OnePlus-8-Pro-and-Galaxy-S20-in-DxOMark-s-camera-test.482597.0.html
Far from a cheap alternative, it has the headphone jack that Mi10P lacks! It also has a nicer look IMO, Mi10 has a punchhole and its back is too bland.