What is a good cartridge match for Shindo Monbrison preamp and pioneer plx 1000?

Thats a great question, and one I’ve been unable to fully solve. My first thought would be the Ortofon SPU Royal N, direct in to your MC. If you want to try an MM, perhaps the Clearaudio Maestro, or one of the Nagaokas. I would ask Danny Labrecque (phonographe.ca), or Don Better, at you guessed it, Don Better Audio. I use a TSD15, but it will requite an SUT. I recommended the standard mounting Royal N, because I don’t believe you have the proper arm for an SPU.

Ortofon MC-3Turbo. HOMC.
$317 on ebay. 

By the way, good as the Pioneer is, your preamp is in a different league. A better turntable will allow you get better results from higher-end analog.

The Hana moving coil cartridges look promising. They make four models. Two have elliptical stylii available in high (2mV) and low (0.5mV) outputs and two with nude Shibata stylii available in the same two output levels. One thing a bit different about these is that they use alnico magnets, which are known for a warm, organically musical sound, whether in guitar pickups, loudspeakers, or other audio applications. Google for 'em and you'll find several favorable reviews. Herb Reichert at Stereophile really liked it on a turntable he was reviewing in the October 2016 issue.

Also, since you have a PLX-1000 which has very strong torque and a sort of insistent sense of tempo (or so I've read), you might want to swap in a wood headshell and a good turntable mat to relax the sound a bit. I just switched to a cherry wood headshell for my Audio Technica AT150Sa (Shibata stylus). The headshell comes with good hardware and excellent cartridge leads. It is only $35 available from Amazon and eBay. 

It definitely warmed up the sound of my AT150Sa cartridge on my Technics SL1210 M5G direct drive turntable.

johnnyb- Herb likes everything (-:  The Hana's are interesting, and don't break the bank. I know both of the dealers I mentioned have experience with a  few cartridges carts beyond the usual suspects. I thought my Dyn 20X2-L sounded good direct in. But you may be on to something with the Hana's. I may explore those, or Nagaoka next. My V/R does not have the built in MC. Mine is special order, with two MM inputs. That's the reason I am thinking MM for a second cartridge.

salc- give Don B. a call. He has Lyra, Ortofon, and Dynavector, to name a few. Danny has Nagaoka, and Clearaudio.... Something interesting should come out of it for you.