Tied for 3rd Place:

1. Trans Will (Solangelo Love Story) by EmoGothicGirl14

2. Percy and the crew react to ANYTHING by britishbarny

3. jacob leen: my life as a demigod by jatpfan1234654525

4. My PJO/HoO Headcanons, One-Shots, AUs, and Opinions by NoSaneHumanAllowed