Honorable Mentions:
MHA Op 7: "Curtain Call"
Re:Zero Op 2: "Paradisus-Paradoxum"
Vinland Saga Op 4: "Paradox"
Code Geass Op 1: "COLORS"
Tomodach Game Op 1: "Double Shuffle"
Dr. Stone Op 1: "Good Morning World!"
Death Note Op 2: "What's up, people?!"

5. Gachiakuta Op 1: "HUGs"


4. Parasyte- The Maxim Op 1: "Let Me Hear"


3. Vinland Saga Op 1: "Mukanjyo"


2. Code Geass Op 5: "WORLD END"


1. Death Note Op 1: "the WORLD"


That was my list. What is your top 5?