Best ovulation test

Megan • 👶 💙. 5 IUI’s❌. IVF Mom💉🤰🎄2024

Talked to my OBGYN today and long story short with my husbands sperm count being at 15million he referred me to fertility clinic. What he did not tell me is there is a 6month wait to get a consultation. He said 15million isn't impossible to get pregnant on our own but could be awhile. So I've decided in this 6month wait I will test my ovulation and really focus on those few days rather then a whole week. Which brands are the best?