This one from Atletico Mineiro is just beautiful: https://www.soccerbible.com/media/128459/best-2-min.jpg
Newer and not so much underrated, but as a child of the 70s this retro third kit from LAFC was tailor made for me: https://www.adidas.com/us/2024-los-angeles-fc-adidas-archive-authentic-jersey/JX7966.html