Hey pokerplayerplayer18, other sites can be beneficial to get other views, I can not name names. But some years ago I signed up to some training sites just to get other perceptions and some even offered the first month free. So I would watch what I could and then cancel the subscription

nothing like free hehehehe
google is your friend on that matter.
But yea, as one person stated, you can use the stuff here and if you need to branch out later. Your the boss of what you do. Take care.