Was searching in preparation of my K30 arriving, and found an unofficial version of TWRP is now available.
https://www.google.com/amp/s/unofficialtwrp.com/unofficial-twrp-3-3-1-xiaomi-redmi-k30/amp/
Note: I've not tried it myself, as I don't have the phone yet.
https://www.google.com/amp/s/unofficialtwrp.com/unofficial-twrp-3-3-1-xiaomi-redmi-k30/amp/
Note: I've not tried it myself, as I don't have the phone yet.