Help with Mesh wifi purchase

Hi I am in the UK and have Virgin media - rubbish wifi.  I have a large home and thinking of buying a mesh network.  I have no idea what I need..  Orbi with 2 satalites?   I really would like some parental control on the system - does orbi or other netgear systems have this?  I have read lots of reviews and some say Orbi wifi 6 does not support parental control?

Please help!