I've owned an SME 345 for 5 years now, and I've not found a cartridge that wouldn't track with it.
I'm running it on an Avid Diva II SE with a Sumiko Pearl/Jico SAS Stylus-1. Yes this is a budget cartridge, and I've used an Ortofon Jubilee, Koetsu Black, AT 33PTG, Madrigal Carnegie One, Dynavector DVXX1, ZU 103, Blah blah blah, but the thick smooth sound of the SAS Pearl is what I can listen to for hours upon hours.
I'm running it on an Avid Diva II SE with a Sumiko Pearl/Jico SAS Stylus-1. Yes this is a budget cartridge, and I've used an Ortofon Jubilee, Koetsu Black, AT 33PTG, Madrigal Carnegie One, Dynavector DVXX1, ZU 103, Blah blah blah, but the thick smooth sound of the SAS Pearl is what I can listen to for hours upon hours.