That's cool.

because of the domain authority we need a solution that works similar to the big websites.

For example, the stories from Vice or LP run at: https://www.vice.com/stories/
https://www.lonelyplanet.com/stories/

We also need a solution that allows us to work in this domain format. So not under a subdomain.

Can you do that? Looking forward to purchase the big deal ;-)

Thanks,
Stefanie