Dear Jodi, shapewear usually holds in jiggly parts. You’re looking for shape enhancing wear. If you’re crafty, hip, butt, thigh enhancers can be made from carefully cut foam. Tons of U-Tube instructionals can be found.
Classic Curves is one source for a bottom garment. Fairly comfortable to wear most of a day, so I’m told.
Save your pennies for decent silicone forms, the difference from all other options is worth the expense. Sports bras are to hold in a woman’s breasts from excessive movement. You want a regular, full coverage bra that will hold forms and still allow natural movement.
At your height/weight, you don’t need a lot of enhancement. Unless you want the extra curves.