The most obvious place to put the camera is the main entrance of your house. This allows you to check who is coming to your house from elsewhere, such as your office or bedroom. You may also consider placing the camera near where your children are playing outside. And if you have a home office, set up a camera there.
Speaking of location, the type of camera you buy depends on where you plan to put it. For example, when the camera is outdoors, you want to make it more visible. Such types of surveillance cameras are called bullets. You can have a look at Vivint outdoor camera pro via https://www.homealarmsecurity.org/vivint-home-security/vivint-outdoor-camera-pro.
This type of camera has a long lens and is mounted on a wall away from the side of your house. They are usually operated with 12V DC.
With this type of camera, you get double duty, as it can not only monitor outside activity but also act as a deterrent and keep theft away. Police in most major cities will tell you the probability of a break-in or theft is almost half that of having one or more highly visible security cameras in and around your home.
On the other hand, if the camera is at home, you want to make it as comfortable as possible. One type of camera is known as a dome camera. This camera comes in a dome shape that fits perfectly on the ceiling of your home. You have seen cameras like this in shops and casinos. You can also use dome cameras outdoors, but they must be protected from the elements.