I wanted to know what router is compatible with my setup...
Tomato isn't a make of router, its third party firmware that can be flashed to routers.
Any VDSL modem/router is compatible with SF2, only you can decide by looking at the features which one you want. Possibly best to avoid Netgear as they don't support BTs implementation of IPv6 unless they have changed their minds recently.
ive just seen this on amazon
that's just a router your need the modem/router version