Having trouble reducing the vibrations on my turntable setup

@arjunm , You really only have two good, sure fire ways around this problem. 1st is a MinusK platform. 2nd is getting a fully isolated , suspended turntable like the SOTA, SME, Basis, Oracle, or Dohmann. 
Other less effective solutions exist but if a device does not ask for or accommodate the weight of your turntable forget it. It will not work. To isolate the turntable it has to be suspended by springs with a resonance frequency below 3 Hz. In order to tune the suspension correctly the weight of your turntable needs to be known. The Master Solution is an expensive turntable and would warrant the price of a MinusK platform. They make a low profile one now about $5000. Just a warning, things are going to get a bit bouncy. You get use to it. I will make a significant improvement in sound. Once on the platform absolutely nothing will bother the turntable including jumping up and down and kicking the stand. 

@arjunm , https://www.minusk.com/products/ct2-ultra-thin-low-height-vibration-isolation-platform.html

How about the Vibraplane which has been proven one of the best isolation devices for many many years. Yes there are newer devices that isolate slightly lower in frequency but at significantly more $$$$ YMMV

I think mass is the key. In my case, I have a little flex in my floor and my system resides in a location that gets a lot of foot traffic. I get zero issues with vibration getting into the playback.
Most of this is because I have a Technics 1200G. It alone weighs 47lbs. Bu I also have a solid oak stand loaded with 300 LPs and a 70lb amp.

Use a piece of marble/granite/concrete. Use better feet. It may just be the sum of marginal gains that solve your problems.

I think minus K, vibraplane, and Herzan are kissing cousins, business-wise. If you don’t mind an ugly industrial look, herzan platforms with appropriate load capacity can sometimes be found on eBay. For much fewer $$$.