They should just bite the bullet and make a female James Bond. Hot, athletic, suave. She wears tuxedos with a somewhat feminine cut, drinks vodka martinis, drives sports cars, and goes by "James", because why not.
Also, because this is incredibly important to Bond for some reason, she needs to be an incredibly predatory, womanizing lesbian. Some perfectly happy married straight woman needs to become gay by the end of the movie.
We live in the future, and we can admit that all of the cool things that a Male James Bond can do are things a Female James Bond can do. But at all costs, we need to avoid making this thing feel "woke" of self-aware. If Female Bond is not exactly as toxic and awesome as any of the male ones, we will have failed, and might as well be making another franchise.