To help in cold-calling, you may want to use a service like www.builtwith.com or www.perfectleads.com. You may also want to go the path of Google Ads. It's been highly effective for many business owners.

Additionally, if you build a free plugin that ties into woocommerce, you can get a number of your target audience to download the free plugin (as long as it's useful, and hopefully pre-sells your woocommerce product/service).

Hope this helps.