OPK testing strips ... HELP🤦🏽‍♀️

Tracie

Hi Ladies

Can someone please tell me the best opk strips to use that won’t break the bank. I have 4 days left of provera to take and then once AF comes taking clomid 3-7. I would like to be able to know when I ovulate. Also when is the best time to take the test? In the morning, evening or both? TIA