Ovulation Kit Suggestions

I (30F) am looking for good ovulation kits to identify and track my ovulation period. My gynecologist suggested me to try tracking it for 3 months with the help of ovulation test kits. I am trying to understand my ovulation cycle to try and conceive. Few of my friends told me that these things did not work for them and had to get tests done to figure out the cycle.

People who have used ovulation test kits, can you all please give me good test kit suggestions that actually worked for you. And would also love some tips on what to expect around this. Would appreciate it a lot.