Cheapest/minimal female marvel legends base?

The newer releases are simply whatever is currently, or was recently, in stores (if you're lucky, you may even be able to find some of the older ones in the clearance aisle). Newer ML female figures include: Emma Frost (Puck BAF wave), Jean Grey (Rocket Raccoon BAF wave), Blackcat (Ultimate Green Goblin BAF wave), Red She-Hulk (Hit Monkey BAF wave), Viper & Madame Mask (Arnim Zola BAF wave), Valkyrie & Black Widow (ML two-packs), Mystique (ML Epic Heroes Series), and Moonstone & Satana (Thunderbolts Exclusive Boxed Set).

These two sites have reviews of most of those figures:

Do you know what those newer releases may be? Or point me to a site where I may learn that? Thank you.

The new Mystique is pretty minimal....... but she is blue.....

The only ML females you're probably going to find for a reasonable price are the most recent releases. If you really want to save some green, try hitting up some thrift stores and/or rummage sales; ML aren't the most common finds, but when you do happen across some, they can usually be had for loose change or a buck or two in such places.