If you want the best template for a cover letter you should take example of that guy named Leonardo da Vinci. [1] Quite a smart guy!

The idea is it’s not a summary of what you did and what you can do. But it’s all about what value you can offer to them and how you can solve ~their~ most critical problems. It’s like you pitching yourself as a business.

Now go say no to a guy like that and that can demonstrate these skills for free if necessary.

[1] https://lettersofnote.com/2012/03/28/the-skills-of-leonardo-...