Unfortunately there are a lot of misconceptions about the consumption of fat causing some people to avoid it all together. Personally I love fats and am consuming a diet rather high in fats at the moment.
Sources of good fats include things such as egg yolks, nuts, olive oil, avocado, and salmon. It is important to consider that fats are more calorie dense than foods high in proteins or carbohydrates, so it is vital that you still eat according to your fitness goals, consuming a caloric surplus or deficit dependent upon whether you are looking to lose fat or gain muscle.
The benefits of consuming adequate amounts of good fats are undeniable. It assists in fat loss and improves your metabolism. Studies have found that a high fat, low carb diet can in fact be very beneficial for weight loss in the long term.
Additionally getting a higher amount of calories from fats is beneficial for optimising your body composition and staying lean whilst they also are very filling and keep you feeling satisfied for longer.