I've found TUBI, which is owned by FOX, quite good for a free streaming service. Have not seen any commercials yet.
A co-worker of mine wanted to see some movies we had talked about, and they were all free on TUBI; 'FURY', 'Midway', 'The Founder', 'Gatsby in Connecticut: The Untold Story', 'Me, Earl, and the Dying Girl', 'Lilies of the Field', 'The Phenomenon'.... all of these available on other streaming services, but not free. So don't know how TUBI is offering these at no charge as I'm not seeing any commercials.
I watch CNN on free 'pluto TV' from my browser, as on my Smart TV navigating pluto TV menu responds very slowly.