Thanks everyone for posting your channels, I've gone through a couple who posted here, but not in depth. I'll have some time tomorrow night to go through a decent chunk of these channels if they're active.
Edit: Just a heads up; I won't be going through or helping out anyone who posts a general amount of their videos just as gameplay videos with music over the background with no commentary. There are a couple of reasons for this, but just know that part of building a YouTube channel is for your channel to have a certain personality attached to it. If your plan is to grow as a general SG gameplay + music in the background channel, then there's only a small ceiling for you to target.