When you are starting a new business it very essential to get in touch with the people you know it can be through telling them about your product or by social media. you can showcase your business and products on diffrent social media, make a page and promote them online.
Any Business needs Google Adwords Account and Analytics Account and most important Webmasters Account.
With Google Adwords you can run your ad campaign and tap the market.
With Google Analytics you can check from where you are getting most of the traffic on your website.
Google Webmaster tool helps google to crawl your website.
Every Social Media is not for Every business
B2C Products: Facebook, Instagram, Pintrest, Twitter.
B2B Products: Facebook, LinkedIn.
Media house: Twitter, Reddit.