You absolutely can. Even the biggest selling artists in the world spend millions on promotion, and they are all over social media.

You simply cannot launch a new project without spending some cash and time on promo. To rely soley on social media is a huge mistake, even in 2019, especially for bands that have a target audience aged 35+

It's where a lot of people go wrong and why a lot of projects fail. The notion that if something is good it will create a buzz by itself is nonsense.