Here are some feats for characters who are light on their feet! (The text in this post is released under the Open Game License and it may be reproduced in accordance with its terms. Copyright 2020 Steve Miller.)
You're hard to knock and keep off your feet..
Prerequisite: Dexterity 15
Benefit: If you fail an attribute check to resist a trip attempt, you may roll a Reflex saving throw (DC14) to avoid being tripped. Further, standing up from a prone position is a free action.
Normal: Standing is normally a move-equivalent action.
BACKWARDS AND IN HEELS [Ninja Cutie, Sister of Bastet]
Not only do high heels not slow you down, they make you deadlier!Prerequisite: 3rd level, Dex 14, Cha 14
Benefit: When wearing high heels, except for stiletto heels, the character gains a +2 bonus to all the following skills: Balance, Bluff, Climb, Jump, Move Silently, and Perform (dance).
BACKWARDS AND IN STILETTO HEELS [Ninja Cutie, Sister of Bastet]
Whether you have them on your feet or in your hands, you make stiletto-heeled shoes as dangerous as the knife they are named for.
Prerequisite: Backwards and in Heels feat
Benefit: When wearing stilettos, you gain a +2 bonus to Diplomacy and Intimidation skill checks. Additionally, you wield a stiletto as a melee weapon that deals a based damage of 1d6 points.
Special: When this feat is selected, the character automatically gains Exotic Melee Weapon Proficiency (stiletto heel shoe) as a bonus feat. Additionally, the character can wield two stiletto-heeled shoes at once without any penalties if she possesses the Two-Weapons Fighting feat.
DANCING QUEEN [Fast Hero, Bard, Fighter, Rogue]
You can dance, you can fight!
Prerequisite: Perform [dance] 2 ranks
Benefit: The character practices mixed martial arts. Add 1/2 of the character's ranks (round down) in the Perform [dance] skill to all melee attack rolls.FEETS DON'T FAIL ME NOW [General]
Running away is something you're good at.
Prerequisite: Run, Dexterity 13
Benefit: You are not subject to attacks of opportunity, nor flanking attacks, nor loss of Dexterity bonuses, when retreating from melee combat or other situations where they might occur, so long as you are moving at your base speed or higher.
(Thanks to L.L. Hundal for these!)