Recommend which SPU?


I'm currently using a Lyra Delos on a SME M2-12r mounted on a Thorens 124 and I want to get a second cartridge. Any suggestion as to which SPU would give me a nice amount of SPU-ness... something that's a nice entree into the SPU world?
dhcod
There is no Royal GM MKII cartridge, only Royal GM or Royal G MKII
I’m just trying to be correct with actual models

1) Royal GM (1998) https://www.ebay.com/itm/263279889753
(frosted headshell finish)

2) Royal G MKII https://www.ebay.com/itm/282738766094
(glossy lacquer headshell finish)

3) Royal G MKII (Japan Only) https://www.ebay.com/itm/332453173508
(luxury lacquer headshel finish)

@wrm57 they are looks different, MKII version is another cartridge (no matter european of japanese box) compared to the first version from 1998

Now when we can see the actual pictures it seems like there is a mistake in the article on Ortofon site about those old models. The picture on the Ortofon website is definitely not the Royal G MKII, but the first version aka Royal GM (froasted finish of the headshell). 
@chakster , Right, but I’m talking about the Royal GM MkII, NOT the Royal GM. Please look at the link I supplied above and tell me if that SPU is different from the one you’re talking about. Based on the following specs, I'd say they are the same.

Here are the specs of the Royal G Mkii (from your ebay link):
Output voltage: 0.2 mV
Frequency response: 20 Hz - 20,000 Hz + 1.5 / - 0 dB
Diamond needle: Nude ortofon Replicant 100
Cantilever: Aluminum
Proper needle pressure: 3.0 g
Weight: 30 g

Now the Royal GM Mkii (from my Ortofon link):
Output voltage: 0.2 mV
Frequency response - 20-20.000 Hz + 1.5/- 0 dB
Stylus type - Nude Ortofon Replicant 100
Tracking force, recommended - 3.0 g (30 mN)
Cartridge weight - 30 g
And the cantilever is aluminum.

Right, our MK2 are the same according to specs, the different cart is MK1

BTW Your MK2 has glossy lacquer body? 

@dhcod if the budget is lower find info about the Ortofon SPU Spirit, i have a picture of my old SPU Spirit here. For an elliptical it was a great SPU! Only 500 made!

The 85th anniversary model was the one i always wanted to try when i've been looking for the best SPU back in the day.