I absolutely love wearing contact lenses, it can change your whole look in seconds. The Brand that i usually buy is by Freshlook. Freshlook has different types of lenses but if you want something more natural then i would recommend Colorblend it has a mixture of 3 colors. When you buy them from optics like Pearl they cost €29 and Het Huis sell them for €24 both optics are in the Netherlands.
Brown:
Honey:
Grey:
Blue: I bought these contacts at a store called Hema here in Amsterdam they were €15
xoxo