How can every word contribute to guiding readers towards this action? How can you make the action easy or effortless? Can you give readers more than one option to accommodate different budgets or interest levels? For example, you might offer email, SMS or telephone responses, or a variety of payment options.
From Nobody Wants to Read Your Sh*t by Steven Pressfield
Try this
Write five different CTAs for the same action and test which feels most natural to click.
Ideas
Open a ten-minute sprint with Call to action as your prompt.