I tried a Twitch Chat Overlay for my stream and realized that a similar application could be made to show a map over the game while playing Escape from Tarkov.

The overlay sits on top of the Tarkov game and can show any image you would like to show. You can adjust the size as needed as well.

All of the code for the Tarkov Map Overlay is open source and available on Github at the following link: https://github.com/uberswe/Tarkov-Map-Overlay