Basal thermometer

Stacie β€’ Mother to Ben πŸ‘¦πŸ½, Bash πŸ‘¦πŸ½, and Braxton πŸ‘ΆπŸ½, 420 enthusiast πŸ”₯πŸ’¨, lover of life 😍🀘🏾
Which brand should I use for best results? I've done everything to keep track of my cycles. Everything but keep track of my temperature. 
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