you should not perm your hair constantly. It will damaged your hair. Love your wavy hair just the way it is by using the right products If I may recommend, you could use :
elseve by loreal anti-frizz- the color of the bottle is yellow
my hair is 2b type and since I use that product from the shampoo, conditioner, and the mask also, my hair is shinier and also manageable
for cream you could use makarizo intensive care product - golden gloss, it smells great and also style and conditions your hair at the same time
or if it's not availabe
try kerastase oleo relax serum

good luck