So now that my PC is upgraded I intend to use my old parts to help my brother upgrade his rig. Not as fancy as mine but a good bang for the buck gaming PC. He'll have my old case, psu, gpu, and ram. I think he mostly needs a new mobo, cpu, and cooler. What would you guys say is the best value right now for a new mobo+cpu? Preferably something with longevity that he can upgrade in the future if he wants but is still compatible with my ddr4 ram right now. Bonus if it doesn't need a big cooler as my old case is a bit compact for an ATX.