With that being said, YouTube and Twitch aren't out of the question - it's all a matter of finding broadcasters with smaller streams who either are hardcore ARG enthusiasts (or really hardcore mobile games enthusiasts) that might support the campaign before it closes, or are already invested in the game and helping them expand their viewership.
Each broadcaster will also need to talk to the developers and get permission to stream anything before Open Beta/Live. That is a thing too. NDAs and all that.
Once we do have broadcasters showing Maguss, or even talking about it, we need to start having them cross-promote each other. The Final Fantasy XIV community does that a lot by hosting one another, and it generates a lot of good press for the game and broadcasters, which helps everyone involved. It's not that hard to do, especially with the newer auto-host feature, but there's other fun things like "raiding" each other's streams to get each others' viewers familiar with who is broadcasting about the game.
Anyway, there's a lot to getting broadcasters involved without spending an arm and a leg, especially when stuff is still in closed testing.
I personally am hosting a segment on my stream for Maguss once it launches Closed Beta called Maguss Mondays, though I have had a setback in my stream as of last week that I hope won't damage things too much - we got rear ended on Nov 8th after going to vote, and I got a concussion...and technically should be resting for two weeks (I'm up drinking water to stay hydrated at the moment though!), so no streaming till at least next week.
Any broadcaster remotely interested in Maguss likely is starting to put things up on their profiles, so we could likely start searching for them now, and keep searching over the next few weeks to add more to our broadcaster pool. Going after the huge broadcasters probably will have the same results @Lilithian got unless we really luck out, so I'd say let's cast about in the more intimate end of the pool.