Have many. But usually each channel talks about a specific poker modality, it will depend on which modality you are most interested in.
Carmanhani's channel is pretty cool, he does a lot of tournament reviews.
Just so you know: Cardschat is not just about freerolls. there is really a lot of useful information here and Cardschat tries to ensure that you get all the necessary information in one place. Watch the Cardschat channel. You will be able to meet people from the poker industry, take a 30-day course and learn a lot of useful information.