Take advantage of the digital world we are in today and put yourself out there.
A simple social media account that posts relevant stuff about your business and interacts with clients and potential clients is marketing.
Very few people on this forum don't use at least one Google product.  Google has made it very easy to market your products and business using "Google ads".  You can put out an ad that gets to your target audience for as low as $10 a month. You can use the cost-per-click (CPC) formula,  that way you'll only pay for an ad when someone clicks on your ad. 
Facebook ads are also very similar.  You can place an ad that costs from $1-$10 per click.  The same goes for youtube ads and many others.
These platforms have very good tools that can help you achieve your goal and achieve the objective set for your marketing campaign. 
These may seem very complicated but they're not.  There are step-by-step guides you can follow.  They also have tracking tools you can use to track the effectiveness of your marketing campaign.
If you can't set it up by yourself or you don't have the time,  you can hire someone to do it for you. 

For your business,  brand, or product to grow you have to make a conscious effort to make it more.  Your service or product has to be superb,  but I believe your marketing needs to be better.
A product is only as good as advertised. 
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I agree with you take advantage of the digital world because with the social media platform it can help a lot when it comes to marketing of your business. Advertising your businesses in a billboard or tv advertisement it would cost a lot of money. For the TV ads the cost would depends on the air time and on what particular show your ads will be shown. With the digital ads like google ads and facebook ads it could help boost up your business and it will have a chance to grow bigger. You can also ask services of social media influencers specially the starting influencers because they will show eagerness and also they are not expensive they would accept your products as sample and in return they will showcase it on their personal pages. With that it can help to boost as well your products.