Hello,
I have one idea for marketing your business. Digital marketing can make a business. If you are not on social media (including Facebook, Twitter, Google+, LinkedIn, Instagram, Snapchat, Pinterest, and Periscope [yes, all of them!]), then you won't be able to reach your maximum audience.
Videos are also a huge part of digital marketing. Try creating a YouTube channel and creating videos for your business. Check out these business video ideas to get you started: https://valoso.com/blog/business-videos-startup/
I hope this helps!