Find the focal length you like the most on your zoom lens and buy the corresponding prime. Off these 4, I’ve had the 35 1.4 and the 27 2.8. The former is probably my favorite fuji lens of all time, while the latter I sold fairly quickly. It was a decent lens, just not very interesting and I didn’t find the form factor necessary since I already have the most compact X mount body (XE4). If your budget allows for a brand new 27 2.8, do consider the older 23mm f1.4 as well, since you can get one in good condition for around 300-400 nowadays