Most of the B350's aren't lacking features, such as M.2 for fast SSDs. The only real difference, as you stated, is SLI. Make sure you look for a board with heatsinks on the VRMs (the little canister looking things to the top and to the left of the CPU) if you are planning overclocking at all (which you said you were). I would also look up individual boards, but the deal I'm seeing currently is the MSI B350 PC MATE for $85.