Where's a good waist trainer??!!

Hi ladies I'm in search of a good waist trainer.

I have a few already, but none meet my expectations... One is MISS BELT AS SEEN ON TV. Although it does cinch your waist to the max, I found it too short for my torso and too bulky to wear under clothes. 2 is the TITANIC DAYS WAIST TRAINER WITH STEEL BONES. This one is great but very uncomfortable to bend or do anything! Especially running after a 1yr old. The others I have are the Amazon and Wish waist trainers that dig into ur sides. I need one that is discreet under clothes and comfortable to wear everyday!!

What product do you guys recommend or have loved???!!!