Content marketing tool for posting on selected websites everyday automatically

Looking for a Content marketing tool that can post to 50-100 sites daily fresh news content. I would setup automation profiles for login/posting to be able to post on the daily without having to repeat the tedious tasks via a browser

Let me know if you guys have any ideas. thanks

Are these 50-100 sites owned by you and have the same/similar workflow for posting? You could build something using ZennoPoster or BrowserAutomationStudio in that case.

If they are a variety of different platforms, you might want to look at tools like RankerX or GSA and see if they support those platforms already before jumping in.