I wrote a fic about how the Camaro's wheel got in that lake! (But Noah only briefly appears early on, and it's a relatively long fic mostly focusing on the OT4, so it may not be to your interests.) I also wrote an ensemble gen fic for Yuletide a few years ago (after only the first two books were out) for the prompt 'a happy ending for Noah'. And some Noah recs:
(Carrion Comfort) is also tagged Noah/Ronan but is more friendship ficlet (very short)
Don't worry if you don't feel inclined to follow these - I'm actually not in the fandom any more (haven't been since before the last book) and so not looking to engage fannishly at all. But I did enjoy my time in the fandom!
no subject
this my excavation which is Noah/Ronan
(Carrion Comfort) is also tagged Noah/Ronan but is more friendship ficlet (very short)
Don't worry if you don't feel inclined to follow these - I'm actually not in the fandom any more (haven't been since before the last book) and so not looking to engage fannishly at all. But I did enjoy my time in the fandom!