Sure, here's a list of songs that could cater to various moods and occasions:

1. Happy/Upbeat:
- "Happy" by Pharrell Williams
- "I Wanna Dance with Somebody" by Whitney Houston
- "Three Little Birds" by Bob Marley

2. Sad/Reflective:
- "Someone Like You" by Adele
- "The Scientist" by Coldplay
- "Hallelujah" by Leonard Cohen

3. Romantic/Love:
- "Thinking Out Loud" by Ed Sheeran
- "All of Me" by John Legend
- "I Will Always Love You" by Whitney Houston

4. Party/Exciting:
- "Uptown Funk" by Mark Ronson ft. Bruno Mars
- "Get Lucky" by Daft Punk
- "Yeah!" by Usher

5. Relaxing/Calm:
- "Gravity" by John Mayer
- "Yellow" by Coldplay
- "Banana Pancakes" by Jack Johnson

6. Workout/Motivation:
- "Eye of the Tiger" by Survivor
- "Stronger" by Kanye West
- "Lose Yourself" by Eminem

7. Inspirational/Uplifting:
- "Imagine" by John Lennon
- "Beautiful Day" by U2
- "Roar" by Katy Perry

Remember, music is very personal, and these are just suggestions. Your perfect playlist might look different depending on your personal taste.