Assuming you don't want to shell out the money for an expensive bike without a coaster brake (Woom, Cleary Bike, Commencal Ramones) that she'll probably ride for a year or less, I would recommend:
(1) Try to find a used Specialized Hotrock 12. While they still have a coaster brake, they have great geometry for small starting riders and they're very lightweight.
(2) Get a balance buddy training handle so you don't have to bend over and can still skip the training wheels
https://www.amazon.com/Balance-Buddy...=balance+buddy
If you haven't already, check out
Two Wheeling Tots ? The Best in Bikes for Tikes They have lots of great information about different bikes.