I am a big fan of Izotope RX7 De-Click, but every once in a while I find something that it just canât deal with.
Today I was trying to deal with some clicks from modulating levels in Akemieâs Castle, but they wouldnât go away. There was some interesting FM noise in the same frequency range where the clicks were prominent, and I tried several different things to preserve the noise but kill the clicks. Finally I found that ZPlane Peel could isolate the frequency region and then Bitwigâs peak limiter could clamp down hard on the clicks, which were louder than the general noise level.
That solved the worst of the clicks, but there were still some later that were in a more dynamic section. Out of desperation I started searching for other click repair plugins, tried Waves X-Click, and it did the job!
Itâs possible that the Izotope and Waves plugins will each cover territory that the other wonât, but itâs also possible the Waves one is just better⌠I guess I will find out over time. Iâve already found some things that X-Click wonât fix, but RX7 could do it in multiband mode, though thatâs a slower-than-real-time process. So I guess like many things, the answer is âget bothâ 
This project Iâm working on has a lot of YM2612 in it as well as Akemieâs Castle, and recording techniques (and plugins too) that emphasize the fluttery noise and scuzz, but sorting out unwanted clicks from the rest is kind of a nightmare scenario. So far I havenât found anything where I canât get the results I want though 