Can I ‘delete’ hide my main domain?

Hello everyone,

I’m setting up my WP multisite right now, and I could overcome every hurdle until now.
I created the subdirectories /en/ and /de/ and they are working. However, my problem is that mydomain.com is also setup and since it’s the base I cannot delete it. Let me quickly explain, what I am trying to achieve:

I want mydomain.com/en/ to display my content in English and mydomain.com/de/ in German (probably more in the future). However, as of now people who put mydomain.com in their browser stay at mydomain.com. I wish they could be redirected to the right site depending one their location or browser settings.

How could I achieve this? If you need more information or clarification, just ask.

I’m looking forward to your reply!