Samples & Freebies in canada ?

hi ladies , i’ve tried everything with my pregnancy and i need help. i have no idea what bottles and wipes and lotions and stuff would be best for my child as i have so many allergies and reactions to things so i can only image what my baby will be like , but where are the best websites (in canada) i can get samples from to try on my baby instead of spending so much money on products that might not work at all .