But, today, I' going to break my own rule and tell you what I think are the best options, in my opinion, in order of preference. So, in the past, I've tried to present lots of different options, and let people decide for themselves. What I might find the 'best' isn't necessarily what someone else might find the best for them.
I generally try and not directly answer that for a few reasons, the most obvious of which is that the answer is subjective.
I've been covering how to process Fuji X-Trans files on this website for quite a few years now, and I still regularly get questions from people asking me what the best software for processing Fuji RAW files is.