Bubble Guppies. The songs are legit bops. I Sent You a Letter, Bunch of Bones, Go Down to a Restaurant, Long Time Ago, Super Super Supermarkets, Ocean Animals, the list goes on. I love the hooks, harmonies, production, etc. I challenge anyone to name songs catchier than these.

Also, Preschool Popstars. Juice Box, Wait Until I Cook It, Daycare Dance Party. Super fun, funny, and great production.

Lots of great classic Sesame Street songs. In particular, they had two disco albums that my kids and I have dance parties to. One of the Bee Gees produced one of them. Neither album has any skips. I also love the song I've Got Two---Susan could sing!

We love Disney soundtracks, and one of our favorites is The Princess and the Frog, very jazzy New Orleans tunes.

Have fun!

I really love this theme. Off the top of my head:

"Verdanturf Town" and "Dewford Town" from Pokemon Sapphire/Ruby.

"Fate and Destiny" from Patrick Doyle's score for Brave (or really anything by Patrick Doyle; his soundtrack for Goblet of Fire is lovely).

"Test Drive" and "Romantic Flight" from How to Train your Dragon.

"Thula Baba" from Civilization 6. (This one isn't streaming, so it's a little hard to find, but it's a beautiful rendition of a traditional lullabye: https://youtu.be/25X8JYsPqyg.")

"What are You" from Silvestri's soundtrack for Ready Player One.

Hope that helps! If I think of any more, I'll add them.