Most people posting on reddit aren't accomplished strength athletes and/or don't have a proper education in exercise science in order to create a workout routine that will actually work long term, so you won't get any great answers. I'd either buy a program from an accomplished strength athlete or someone with a degree in the field of exercise, or I'd read this textbook or this book and create a program yourself
I think mine is on the lower end, got it in a Christmas gift exchange from work. But it does the job.
Amazon…works really good. And the motor is rechargeable.
Here’s the link to the exact one I use for workouts : WarTechGears Tactical Fast Vest 10"X12" MOLLE and PALS Fully Adjustable Law Enforcement https://www.amazon.com/dp/B07WZVVT8B/ref=cm_sw_r_cp_api_glt_i_P4V7HN2KVCQV0AEFJAKB