@Denney+Masterx The fullblown router connection is the best way to go, but can be more difficult as the router is just not plug it in like the sky hub you have just now so takes a little bit off work and you get NO support from sky at all.
The 2nd option and i think this is the best for you, is to get a Mesh system, the number off units all depends on what you need to cover property wise, but 2/3 are the most common, 1 has to be right next to your sky hub as you need to cable from that Master Router to the back off the hub, 2 and 3 become sattelite units and once connected to the master you place them through out the home.
Two off the choices are Tp-Link Deco range or the Asus mesh range, both are good and will do the job you need, with Asus you get everything you need and for ever, nothing extra or subscribe to this to do that, with the TP's depending if you need extra then you may have to fork out for that. As you want parental controls i would look at the Asus range XD4 or BD4.
If you take a look and decide you can post your choice up and see if someone will yah/nah for you. Link below is all about mesh for you to read when you get a minute!
Info links about mesh
https://www.howtogeek.com/290418/what-are-mesh-wi-fi-systems-and-how-do-they-work/
https://www.howtogeek.com/802557/mesh-router-mistakes-to-avoid/
https://www.highspeedinternet.com/resources/how-to-set-up-mesh-network#:~:text=You%E2%80%99ll%20only....
