I ordered this one in a pinch from amazon for $20 and I surprisingly really love it. I’m a size 20 and ordered the 3X. It fits well, don’t have to wrestle it too much, and comes up to right below my bra in the front, over my bra a bit in the back.
Nebility Women Waist Trainer Shapewear Zipper & Hook Body Shaper Shorts High Waist Butt Lifter Comfort Thigh Slimmer https://www.amazon.com/dp/B07XFN3P8H/ref=cm_sw_r_cp_api_i_ExrtFbG9ZCFS5
Not vintage at all. I bought it to wear at a ren faire but didn't end up going. You can get it for fairly cheap on amazon. https://www.amazon.com/dp/B01I16L21A/ref=twister_dp_update?_encoding=UTF8&psc=1
It looks like the white is sold out though. :(