I go to portal.azure.com and use the account switcher to sign in to second (prod) account there. This will make both accounts show up when logging in to a service without having to log out from the first.
You could use an separate external gpu if you have thunderbolt ports. It’s not cheap and you sacrifice some performance but worth it for the flexibility in my opinion. Check out https://egpu.io/
I go to portal.azure.com and use the account switcher to sign in to second (prod) account there. This will make both accounts show up when logging in to a service without having to log out from the first.