Which tbh would still be two fine choices.
The pudu is a genuinly great animal to have to expand on the small ungulate roster and represent the temperate region of south america, while both brazillian tapir and a wild camelid are not just very common zoo animals but both got their own little upsides , most importantly the cool wild vs domesticated dynamic for the camlids and the tapir could hopefully bring a diving update for the tapirs, which would be pretty neat. Is that cooler then a monkey? No but it defenetly does elevate them above filler carnivoran tier like bush dogs. The pack most likly would be in best case 3 slots for monkeys or birds, 2 carnivorans and 2 ungulates so something like coati, ocelot, pudu and either guanaco/vicunja or brazillian tapir would be a decent roster for those fillers, aslong as the 3 other picks slap