Best ovulation test?

Okay ladies, I need your help! What are the best ovulation tests to use mostly pertaining to accuracy? Last month I used Walmarts brand Equate 7 opk for 12.88. Clear blue & First Response were more expensive so do they actually work good? I seen on amazon they have 50 opk & 20 hpt for 21.00. Great deal!! But do they work good? It was Eady@Home brand they have a few other brands for around the same price. I just want to know the best brand to use that works good!! Are digital ones more accurate than the line ones? Help please!! 😊