No common rating on the E195 just yet as it is (to the best of my knowledge) still undergoing certification, but the E170/175/190 have all been approved as a common rating so it is reasonable to assume the 195 will soon join them.
Flybe as good a place as any to be, though some will never be convinced, but SOU a very popular base and it is difficult to get into on the fleet & seat of your choice.