I am with a network and they have really helped me out. Even for promotion, i'll tell you my strory.
So basically I started posting videos on facebook and they started to become quite popular, conor (the network I am with's CEO) contacted me and told me we could be off value to him and help turn me into a brand.
Within the next week or so I tripled my facebook followers, got 600 subscribers on my youtube channel and hundreds of hits on my videos.
None of this would of been possible if it werent for Centus (idk if this is allowed), but they really helped me out. They optimized me, my internet presence and the way I reach out to my fans, which is how i grew so quick..
They also paid me like 11$ ad performance per 1000 monetised views or something, which seems good (not familiar with pay on yt)
Anyways I definitely would recommend a network and there is many too choose from, although the network im with centus recently offer a 90% split with short contract which seems great. Im waiting to see will i be transferred to that program
Anyway best of luck finding a partnership network, if you wanna know more about the network im with hit me up on skype: ciantwomey or check out there website at www. centus . co