Good, premium aftermarket makes are Brembo, ATE, Jurid, Pagid & Textar. I expect the OE ones are made by one of these. For example ATE are involved a lot with BMW as are Jurid and Textar brake pads. I'd suggest pricing up OE and see how that compares with aftermarket. There are firms who market brake pads that come in bright colours and have labels like "fast road" or "occasional track" but as you are not a racer and have presumably been happy with your 2013 OE brakes - why stray too far.