I'm using this "industrial" piece. I like the quality over typical automotive types. I have a short 4 guage jumper from the battery to the large primary hole. Then I have 6 outlets to run my accessories. It is a clean, durable piece and I prefer the setscrew locking feature. Keep in mind you must use in-line fuses on all the outlet circuits.
https://m.grainger.com/mobile/produc...fc=MWP2IDP2PCP