You can't have one Hadid without having the other. That's because Bella and Gigi Hadid are pretty much the same person. I know that's not very uncommon for sisters, but for two sisters so brightly in the public spotlight, it's very obvious how similar they look. Bella does have darker skin, and a little bit more of an exotic look than her sister, so there is definitely an argument for having her play Wonder Woman. It's not an extremely strong argument, but her chances are better than some of the people on this list.
Ultimately, Bella Hadid, or any of the Hadids for that matter, don't have enough acting experience and are far too thin. I can't exactly picture either of them kicking anyone's ass, and as far as acting, I don't think anyone could trust them with millions of dollars on the line.