The trend of online marketing has become very powerful nowadays. However, people should understand different ways of online marketing. It is not all about Google or Facebook ads but you can also create exciting banners and use templates like these to display banner ads on different blogs and sites.
Even you can see numerous sidebar ads on TopGoldForum. Similarly, non-promotional marketing is also a useful way to engage more customers. You can get help from YouTube or Instagram influencers in this regard.