I took a look at genesis 3 topology yesterday… I know genesis 2 from a few years ago and gotta say, its definitely improved. Reduced polycount by quite a bit and optimized flow.
Triangle count for the naked body was around 34k I think - which isnt bad, but already quite high.
In terms of edgeflow and topology for animation, yeah its rather good. I found a few areas where I disagree with the way it has been solved (i.e. lower belly).
But all in all their topology is above average - as in, I havent seen better topology yet, except for my own models…huheuheue
But yeah laughs aside, Ive also checked makeHuman topology and have to say its definitely inferior. Its a topology designed for generic sculpting and not for anatomical deformation. I would stay away from that if you want to push the quality of your character movement and anatomy in game.
Cant think of any other option… turbosquid yeah, could find something decent in there, but with TS I always find its quite a gamble. Plus stay away from those super expensive all in one human sales, they are just daz stuff with a bit of extra work - at least thats how it looks.
tl:dr: Daz is good in terms of topology, but only use it as a base, I find most of their final character designs/models are pretty lame and uncanny.