There seem to be a big disconnect in the TF2 community, where a large portion of community members only relies on a single source of news (e.g. Reddit / community forum / Steam workshop or the TF2 blog alone). I cannot stress enough; to get most out of the TF2 community: try to join Twitter.
A lot of (big) YouTubers and SFM artists are active on Twitter, and are most of the time very approachable! If you want to get your content (let it be videos, art or whatever) exposed; post it on Twitter. Put some effort into your account: create or commission yourself an Avatar and handle your Twitter account as an artwork, that is being worked on 24/7. Check it once a day and built a follower list of things that you like!
To get you started on Twitter, I recommend you follow these accounts:
check my following list for a gross part of TF2 YouTubers and artists.
And this is just a shot in the wild! If you have any recommendations, be sure to post them below.