So, there is this old repo that was built in .NET framework called DITCH. This already has the logic to broadcast transactions on Steem. However, as I said, it's very old. We can probably fork this codebase and work on upgrading it to .NET core and add the latest APIs to this.

What do you think?

PS: Here's the link to the REPO
https://github.com/Chainers/Ditch