Long hairstyles won’t look flattering without any layers so it is really important to choose a layering style that suits your face shape and hair type.
First of all, you need to know that which layer length is suitable for your face shape and hair type. Shoulder length layering is almost great for every woman if you want to emphasize your facial features chin length layering would be also a great idea. Women with curly hair should avoid heavy layering because it will be much more hard to style their hair and it will cause frizz so if you have curly hair light layering at the ends would be helpful.
Fine or thin hair won’t look as flattering as blunt cuts especially for long hairstyles, you will need to go with layers to create some volume and texture. Lightly layered hair with waves would always look flattering and modern.