I know there's a tendancy to pose Shinkis with Transformers or some other similar line... but does anyone know of a toyline that would live up to the shinki's over-all anime style, posability, and scale, but included male characters?

I'd like to say Revoltech and Figma, but Figmas are just a biiit out of scale with most shinkis (too small, they do look good with MMS small with small heads like Altines) and Revoltechs are a little too tall (but for a male character or a human/non-robot this would be okay).

I've found revoltechs less posable than figmas, but they have more elegant lines. Neither feels as nice to pose as a shinki/MMS body though.

Amdriver, perhaps?
Microman is probably just as posable, but they're half the size of Shinkis.

Revoltech Assembleborgs should be a suitable male counterpart. HOWEVER... because they're ONLY sold at the Kaiyodo store (physical and online) you'll be paying a markup regardless of where you get them.

I don't like the looks of Shinkis posed with Transformers and the sort tbh

I use Revoltech 061 Protect Gears for certain photoshoots
McFarlane Halo Spartans for other things aswell

however both the Halo Spartans and Revoltech Protect Gears can be seen as female too since both had female operators

From what I've seen, the Asembleborgs are just faceless droid/armour things. I'm wanting something that looks like a person.

The HALO figs have the same problem, to my knowledge. Just suits of armour.

I'll poke at the Revoltech stuff a bit more, and see what I see.