Know-How Exchange : Strategy

Are you getting traffic but few buyers or little traffic?
What's remarkable about what you sell? Who LOVES what you're selling? Why?
Have you purchased any online ads for your store? If so, what were the results? If not, why not?

What are your access URLs to each platform so we can have a look at your posts to see what needs to change from a prospective customer point of view? Do you analyse your visitor data? If not, you should do so as that should give you some pointers to what is not working. Have you also obtained professional advice on aligning your products with various keywords to help direct customers to your sites and products?

What do you sell?
Who are your customers?
How big is your current following?

The strategy that is most effective for you will depend on your business model, your target audience, and your available resources.

All good and important questions above. Adwords is generally the most immediate solution to driving traffic to a website ... and you only pay when the traffic clicks to your landing page, so the results (in that sense) are guaranteed.

For a better answer we'll need the requested information.

I'd focus on creating content on social media and connecting with potential buyers there, with the end of your sales funnel being at the site itself.