Is there some group which collects funds for Bitcoin promotion? If some group like this can create advertisements for Bitcoin, more people can become aware. Such mediums should be targeted which have reach on audience that is still not familiar with crypto.
Best way to promote Bitcoin is to talk about it. You do not need money to do that. Just do your part and make sure that, thanks to you, someone new joins the coiner community.
But either way it will happen, I think. Bitcoin is just too good to pass up, especially if you understand why. Unfortunately, the understanding of the "why" part is really hard for some people because it is technical.
Lucky for them, experts can explain it in terms they can understand.