We have USB type C docking stations that have 4 USB ports. 2 are USB 2.0, and 2 are USB 3.0
It provide 100% power to the laptop
They also run 2 1080p displays at the same time.
I haven't look at the specs so I don't know if it support 4k, but I imaging there are docking stations that support 4k@60hz.
A Thunderbolt 3 hub should work. If you are using a MacBook with a USB C port, it supports Thunderbolt. If you are using a Windows laptop, let me know what computer model is and I'll let you know if your laptop has Thunderbolt 3 on it.
A Thunderbolt hub can have many outputs, so you will have to find the one that is tailored to your needs. From reading ...