Heaven help me, I think most of the best candidates for a Maximum woman are non-X-Women.
She-Hulk in the white/purple costume decked out with accessories. Ponytail, big hair, and smiling heads, a ton of Deadpool/Gwenpool-like hands, dumbbells, and some lawyer accessories (a file, paperwork, and an OG cellphone?).
Invisible Woman with swappable invisible limbs and big, clear bubbles, shields, etc.
Elektra, as eloquently presented by Stoopid Sandwich.
Black Widow—hear me out—in the gray '80s bodysuit with the spider symbol on her back. Similar accessories to the Target exclusive, plus more guns, gauntlet effects, and a pleather jacket. Give her the grappling hook/line and maybe a smoke effect accessory.
MAGIK with multiple swords, Stepping Discs, magic effects, and a Limbo demon pack-in.
I could make a good case for Storm and Jean, too. I'd love to see Rogue, but I can't squeeze enough value out of the accessories that come to mind.
I don't know if we get a Widow so close to the Target one that basically was one.
And I definitely think if Hasbro said 'we're going to make the definitive tigerstripe Wolverine Legends figure and it will release in 2.5 years,' then they would struggle to sell any other regular, single-carded TS Wolverine figure between now and that day.
I don't. We're helpless addicts. We know something better is always coming, yet that never stops us.