Favourite under-appreciated Merlin/Arthur fics?

[afortunatefew]

Hello! I'm looking for Merlin/Arthur fics that you love and think are brilliant but that aren't considered the 'fandom staples' or don't often get recced or suggested here because i think i've probably already read the majority of those. So, yeah, bascially just your favourite under-appreciated fics please :)

AUs are welcome
Any other pairings are fine as long as Merlin/Arthur is the main one.
Any rating.
No need to worry about warnings, particularly, although i'm not a huge fan of non/dub-con.

Thanks in advance :)