Technics 1200G phono recommendations

Well, it might get complicated. If the table is "detail oriented" this doesn't mean that you want to screw this up by using cartridge that can't make use of that. Cartridge can be both warm enough and detailed.
As for SS/tube depending on speaker efficiency, I don't know but not sure this is correct.  You don't want noisy phono stage in any case. Also, the choice of tubes may matter.

Consider psa audio phono of the year 2020 stereophile 
 

Now that might be worth trying if you go with SS. Make sure you can return it. Michael Fremer quite liked it, read his review, though he got some background noise with it at first before he moved the cables, so it is very sensitive in this respect.

Cartridge most likely Ortofon MC Cadenza blue. Does that change anything?

It is, you need a phono stage with optional gain and optional loading for MC. 

Gold Note PH-10 is excellent

I have a 1200G. Excellent turntable.
I use an AT VM740 ML. It's a dual moving magnet microline cartridge. I like it better than the pricier 750ml. It's a good match for the tonearm.

For phono stage, I'm using a Project Phono Box RS. It is their best phono stage ($1000). You can throw out the wall wart and order their separate battery powered power supply ($700). I found an outboard 18v power supply on ebay for about $200 and it is very quiet. This phono stage is also dual mono...so there are cartridge settings are for both channels.

With the RS, you can set a very low compliance (100) and it works with MC carts too.