Tolkien maps- reference guide
There are many maps of Middle Earth and the surrounds. Here are some that Mel and Kristin use on the show.
This one was drawn by Tolkien himself and is the entire world
of Tolkien’s Middle Earth’ This is the first age of Middle Earth

Karen Wynn Fonstad’s interpretation of the second age taken from ‘The Atlas of Tolkien’s Middle Earth’

Map of Beleriand from the first age. Taken from The One Ring.com

Map of Middle Earth in the third age. Taken from Monash Student Association website