Good GPU for Unreal Engine?

I am building a new pc for game development (I am not testing games on this pc) and im using the following parts and im wondering if anyone has some inside to a good GPU. I am currently thinking about a GTX 1050 or 1050 TI but im wondering if there is anything cheaper than $200 that would run decent until i can find the money for a GTX 1060. Any recommendations from NVIDIA or AMD?

You may want to look at the recommended hardware for UE4. They even have a build near the bottom that they suggest for those looking to build a mid tier rig for development. Good luck!