@OP, the Linn LP12 epitomises bass warmth - but you've had a couple of those. Given that and the fact that you've had VPIs, take a listen to a Technics SL1200G and the latest Regas to see if either floats your boat. The Technics has really excellent bass. It its a little grainy in the upper midrange but only in comparison to more expensive turntables.
Where to go next with the turntable
I've been a long time owner of a Rega P7, and I feel like investigating an upgrade, I'm ot sure if I want to stick with Rega (P8 or P10) or try something else? Currently using a Soundsmith Zephyr MK III cart and Hegel V10 phono stage,
What I have now sounds good, but some more bass/warmth would be welcome.