A practical way to find B2B clients: start from the software they already use.If you build Shopify themes, HubSpot integrations, or Webflow sites, the best prospects are companies already running that tool. They understand the value, they often have budget set aside, and your pitch can speak to their exact setup instead of being generic.How I'd approach it:1. Pick one tool your skills fit best.2. Build a list of companies using it, filtered by size or industry.3. Look at each site and note one concrete improvement before you write.4. Send short, specific notes. Quality beats volume.StackShortlist finds companies by the technologies they use, covering 3,500+ technologies. It is $19 per 100 companies as a one-time CSV, no subscription: https://stackshortlist.dev