So the hub provided by my ISP is really old and bottlenecky at this point, they would charge as much to replace it as to buy my own so I figure better to own my own hardware than get some bare minnimum functionality piece of branded plastic right?

I’m in the UK so my connection setup is a single ethernet port in the wall with a splitter to connect the phone and talk talk hub via LAN cable.

A quick google tells me Asus is a good brand but I’m not sure if I just need a router or if I need to get a combi router/modem.