If you are looking for a powered hub with power delivery, an example of a pricier hub could be something like this:
FEATURES—The Plugable UD-CA1A is PCMag.com Editors' Choice award-winning Universal USB 3.1 Type-C docking station with Power Delivery. 4K-capable HDMI display (4K at 30Hz, 2560x1600 and lower at 60Hz). Provides 60W of power to charge your attached system COMPATIBILITY—Single display docking expan...
www.amazon.com
However, this is a more expensive solution and it might not be necessary for your situation.
If you do
not need a powered hub or power delivery, you could go with something like this:
CONNECT ANYWHERE—Upgrade your tablet, laptop, or PC to wired Gigabit Ethernet speeds via USB-C or USB 3.0. USB Type-C and USB-A 3.0 cables included. Expand your USB 3.0 connectivity with this travel-friendly 3 port hub PORTABLE DESIGN—Featuring a compact aluminum frame, this sturdy hub is travel-...
www.amazon.com
(This alone might work perfectly fine without interference. You would have to try it to know for sure.)
But, if you get interference with this passive hub, then you can add a high-quality, shielded cable of say 3-6 feet and move the physical location of the hub further away from the MacBook Pro:
The Cable Matters USB 3.1 Type-C to Type-B is specifically designed to connect current generation external hard drives, USB switches, docking stations, and port replicators to the new release computers such as the 2015 MacBook and Google Chromebook. Preserve your investment ...
www.amazon.com
Some hubs also have passthrough charging. They are often inexpensive but I've personally found these more commonly cause WiFi issues...my assumption is because it places the cables that cause the problem in closer proximity to the MBP's WiFi card.
Finally, do note that if you are using 2.5-inch hard disk drives that rely on the hub for power, sometimes it is a hit and miss with how well they play with passive hubs, especially with some 7200 RPM 2.5-inch hard disk drives that consume a bit more power.