Greetings everyone. I need to hire some people that will do the design part on a couple of my projects. Where should I look for the best options like this? Share your experiences.

Hello-hello. The request is interesting and I bet that this discussion will be quite valuable for everyone. Why? Because people here will recommend interesting and useful things. I will be the first one to recommend something here. Check this article about data persona . It covers some interesting things about creating user personas which are extremely important for UX. And you will find a good agency that will help you.