Hi,
With social media platform as something at your fingertip why not use them to your advantage. Go ahead and use all the platforms available to your disposal . Facebook, Instagram, twitter are just a few.
Send it to your friends and colleagues platform as well and ask them to do send it to their friends and colleagues.
You may also do email listing
SMS blast
And of course the good word of mouth.
Be passionate about what you are offering and watch as it grows on you as you get excited about what you are offering.
Hope this helps