Hi Chris, what's your budget?
As you've an RX, does it need to be high lift?
A few years back I had several smaller/high street jacks fail after a few uses when just out of warranty. So I bit the bullet and bought a big, heavy, stable, 3 tonne, low profile, quick lift jack from SGS that's been great and gets plenty of regular use, reference https://www.sgs-engineering.com/garage-equipment/trolley-jacks/capacity/3-ton