My friend and I both made “hotels” out of our houses a few years ago, but we didn’t have anyone to check in. Now, with the monstrology update, we are both thrilled that we can have ‘guests’ in our homes. What exactly do the house guests do, and what is the best way to farm for them?
I've done a bit of Monstrology. Just farm them! Make sure you have the right card and the right type of monster! I also suggest farming with friends so it'll be faster and easier.
Make sure the monster is related to your hotel theme! If you're going with a homey hotel then I'd suggest using bears as your guest. Something like that.
I know it wasn't much but... I hope I somehow helped!