If you liked Snow Crash, give The Diamond Age a go.
I’ve heard good things about Seveneves, but I’m a little hesitant to pick it up given that it’s huge and there are thousands of other books to read.
I adore Zodiac as well but am in a decided minority in that regard.
We're in the same camp, friend. Zodiac was my favourite novel of his.
I sometimes don't mind his "explain every little detail of the physics of how things work" style of writing, but when that's the majority of what you're reading over several pages of being introduced to new characters, it's a bit much.