If the company has money and just need attention and client, then youtube and smm will be the best. Those, who do not have money, can use campaigns only
I do not think, that for advances on YouTube need a lot of money. Creating a short clip not expensive as it seems. I watch them sometimes, and the guys do it pretty well. What's better? I think these are articles and twitter. First, describes what is happening. The second covers the general public.