9. "The One with the Monkey" (Season one, episode 10)
The first-ever Friends holiday episode is light on laughs and, well, holiday spirit—but on the bright side, the cast's famous on-screen chemistry was already beginning to hit its stride. In the lead-up to New Year's Eve, the six friends agree to go solo for the big night but end up breaking the pact in speedy fashion. "The One with the Monkey" is noteworthy, however, for introducing Marcel, Ross's pet capuchin monkey. Plus, the episode's selection of '90s alt-rock cuts will surely have you feeling nostalgic. R.E.M.'s "Shiny Happy People," anyone?
Every Friends Holiday Episode Ranked—From Worst to Best, Source:https://www.besthealthmag.ca/best-you/wellness/friends-christmas-episodes-ranked/