As mentioned - The Irish Centre opposite WHL station (Pretoria Road).
Otherwise, try the licensed cafes nearby like La Barca (2mins up the high road from the Bell & Hare pub in the direction of Seven Sisters) . Decent food at reasonable prices & sell beer etc. Seen plenty of away fans in there...
The Irish Centre certainly lacks atmosphere (it is more like a school hall) but home & away fans have mingled there without any bother for years. The B&H is bang on the High Road & a 1 min walk from the South Stand.
West Road is near Northumberland Park as i suggested might be the case above...
It is either there or closer to Northumberland Park - i suppose on OB directives?
The B&H pub is 'safe', 90% of the punters will be made up of our overseas supporters.