can someone please write this? it would be a crack ship if there ever was one

1936020 why don't you write it? Besides, there's already ships about those two... did you even look bro?

1936040 1. I'm a terrible writer
2.the browse engine is so unrefined that those fics get mixed with all the stories tagged with nightmare moon and Celestia as main characters and the romance tag

1936420
1) Add 'Romance' to your search box thingy query.
2) Add 'Nightmare Moon' to the query.
3) Add 'Celestia' to the query.
4) Add 'Applejack' to the query.
5) Click the 'Applejack' icon thing (not the X) in the query. It should now turn red, meaning that you're excluding all stories tagged AJ from your search.
6) Repeat steps 4 and 5 for other characters.

It could end up looking something like this: https://www.fimfiction.net/index.php?view=category&tags[]=category%3Aromance&tags[]=character%3A54&tags[]=character%3A17&tags[]=-character%3A10&tags[]=-character%3A9&tags[]=-character%3A7&tags[]=-character%3A11&tags[]=-character%3A12&tags[]=-character%3A8&tags[]=-character%3A16&tags[]=-character%3A74&tags[]=-character%3A53&tags[]=-character%3A78&tags[]=-character%3A83&tags[]=-character%3A49&order=latest.

Alternatively, you could have just did a google on 'fimfiction nightmare moon group' and go through all the stories in relevant groups/folder, eg:
Doubled Fun - Nightmare Moon
Villains of Equestria - Nightmare Moon
The Hero... Nightmare Moon?
Nightmare Moon!
Nightmare Moon is best pony - Romance

1936020 Done.
Hello Pot, this is Kettle. I’m black.

2035013 other than that one

2039566 Do you not like it?

2039663 I've already read it.

also, in general, I don't like one-shots because they're too short

2047152 And this one?

2047646 the story is great, but I'm looking for new ones, preferably longer ones

2048040 The sequel should be fairly sizable.