what is the best house map for posing?

besides the suburb house

Depends what kind of house you mean. Almost every map contains at least one house.

just some sort of map with a house that has lots of nice detail inside

I think the suburb house is the best you’ll find.
You could try cs_parkhouse, too. It’s pretty good.

[editline]03:52PM[/editline]

de_apehouse is also a good one.

Apart from the ones mentioned. This is fairly decent.