You just need 1 person with 2FA to create the app you need, and get your stream key, those can be used by any of your staff even without 2FA.
It’s also worth mentioning that as an event engineer myself, working large esports events, every company I have worked with accepts 2FA as sensible security measure for stream production, and the potential risks of not using 2FA far outweigh any hassle there may to use it, so every proper organisation works with it.
If you’re still not willing for you or any of your staff to enable 2FA it means you are welcome to continue using Twitch as a viewer, but you will not be able to stream on this platform or create apps with an insecure account.