They do have similac here but not similac supplement formula..I checked on their website too
It really depends on your baby. It's up for you and the pediatrician/hospital to pick one out. My daughter had a milk allergy so she's on enfamil prosobee.
Sorry I just saw you said they don't have Similac in Canada, I would Google some formulas if I were you or ask your doctor
I'm from the US but usually the hospital decides what formula your baby needs. Similac was a good one for my son, but not sure if they sell it in Canada . Good luck to you. :)