There are 2 repositories under flask-admin-template topic.
AdminLTE Flask - Open-source Seed Project | AppSeed
Datta Able - Open-Source Flask Dashboard | AppSeed
Flask Admin Boilerplate with MongoDB
Bootstrap AdminLTE template adapted to the flask framework
Boilerplate code for small data-driven Flask applications
Flask Dashboard NowUI - Open-Source Admin Panel | AppSeed
Python Flask Login Page