Your best bet is to get one of those hubs that has more ports and just not use them. The extra ports usually share bandwidth to some degree with the USB ports anyway. Also, I would highly encourage you to buy a used enterprise hub. The WD22TB4 from Dell is a good option. It has two Thunderbolt passthrough ports and can be found on eBay for about US$100.
I just started using super-productivity to help with this kind of thing