Suggest a speaker for a mojotone vibrolux 5f11 10"
If you want true vintage tweed Vibrolux tone then the G12Q FOR SURE!!
However, if it were me, it would be G10C (or Alnico if you can afford it) but NOT a G10C/S (too dark!!).
The G10 will make the amp have enough clean headroom and bottom end to gig with … but if you don’t WANT the fatness and volume, then G12Q 