I'm currently reading Pandemonium by Daryl Gregory.
So far it's a very enjoyable read, it takes place in an alternate universe where demon possession has become commonplace since the 1950s there are about 100 known demons and they follow the same pattern of possessing a human for a short time before jumping to a new person.
There is the Little Angel who only possesses young girls and will visit terminal patients, her kiss kills.
The Truth, possesses middle aged males, commonly wears a trench coat and fedora and brings justice to someone trying to get away with a major lie.
The Hellion, typically possesses young blong-haired boys aged 5-7, typical Dennis the Menace type, loves pranks and mischief.
And so on.
We'll see how it turns out but it has me hooked so far.