Lol here we go again with the tourbs.
There are several good RMs depending on what you want and what you value in a watch. If it's 1:1 exactness, you're in the wrong brand as everything has relatively obvious flaws, from case size to movements to materials, etc.
ZF makes the most accurate cases, gen sized with pretty close to gen materials, but the movements are simpler (however absolutely not just gears glued down, homie loves saying this but I don't know why) and not as skeletonized as the gen. Their 035s are sold out, and the 055s are hella nice and brand new. I have one shipping now.
RM011s are too thick and generally have 7750s which can be awesome or trash depending on your luck. The KVF ones have the best deco but they're 18mm thick which is ginormous, and size really makes these watches fit as well as they do.
The tourbillon models (001, 027, 056) are very nice, however they're extremely expensive ($1k-1200) for a rep, probably very difficult if not impossible to service, and are in gigantic cases that are far, far bigger than the gen (like 4mm). The 001 was the nicest of them (we'll see how the EUR 056 holds up long term) but I don't believe you can get them from JF anymore.
So it depends on what you value in a watch and what you like about RMs, because there are tradeoffs for every model