Tubi is also good, I use that via Roku, but I think it can be streamed without special apps on a computer, phone, laptop, tablet, etc.
I use Tubi as well. I use Chromecast for YouTube, Tubi, Pluto Hoopla, Kanopy and Prime. Easier to use their apps. My bedroom TV is no longer supported by Netflix so I use it for watching Netflix on that set. I got it because the pad or my phone is controller so dont have another remote. Cheap to $39.
Hoopla and Kanopy are provided by public libraries