There is 4 options
Homeplugs, USB WiFi Dongle or Ethernet WiFi bridge and network cable back to router network switch.
A USB WiFi dongle must use a chip set compatible with the built in software.
Network cable is most reliable and simple option. Dependant on home wiring configuration homeplugs can be reliable (basically if router and home plugs are on same ring main then speeds are much faster than if signalling goes via the consumer unit).
I have a single network cable from lounge kit to router (upstairs). A seperate network switch allows all my kit to share the single cable. Smart TV, Foxsat-HDR, Two HDR-FOX T2, HDR-1000S, Amazon Fire Box, Blu-ray player, Yamaha AV receiver. Spare socket allows any other kit to be connected.