"I am new to the STM32 controllers."
Do you have experience with any other microcontroller(s)?
The standard approach for any microcontroller is to start at the manufacturer's Product Page for it - you can find that easily by simply putting the part number into google:
For an ST product, it looks like this:
Go to the 'Tools and Software' Tab; scroll down (or use the "Quick Link") to 'Product Evaluation Tools' - there you'll see the recommended evaluation boards:
While you're on the Product Page, take time to browse through the 'Documentation' section
A complex system that works is invariably found to have evolved from a simple system that worked.A complex system designed from scratch never works and cannot be patched up to make it work.