If you're using "swang" to mean "to move with style and confidence":
* Strut: To walk with a proud, confident gait.
* Stroll: To walk leisurely and with a relaxed manner.
* Saunter: To walk with a slow, relaxed, and confident gait.
* Swagger: To walk with a confident and arrogant manner.
If you're using "swang" to mean "to move smoothly and gracefully":
* Glide: To move smoothly and effortlessly.
* Float: To move through the air or water with ease.
* Sway: To move gently from side to side.
* Flow: To move smoothly and continuously.
If you're using "swang" to mean "to dance with flair":
* Groove: To move rhythmically to music.
* Boogie: To dance in a lively and energetic way.
* Shimmy: To move the shoulders and hips rhythmically.
* Twist: To dance with a twisting motion.
Ultimately, the best word to use will depend on the specific context and meaning you want to convey.