Before choosing a tool, write down one thing you want to finish: revise a piece of code, organize an interview, or turn an idea into a first draft. A specific task gives you a clearer way to judge the result.
Try candidate tools with the same non-sensitive material. Note the time spent, the corrections you need to make, and whether you can explain and check the output. Compare the results before deciding what belongs in your daily workflow.
Finally, check the official pricing, usage limits, and data-handling information. A directory helps you discover candidates; your own task and experience should guide the final choice.