Pinterest has a great search bar. For example, if you're into candle making, you could type in your query "candle making," then click on a pin that you like and see who posted or re-pinned hat post. From there, you can go to their profile and look at their board, and if their profile interests you, you can press "Follow" and you'll be following them. You can also click through their feed to find other content creators to follow.