Good Percy Jackson Fanfiction is really hard to find but I really don't want to re-read the old fics again and again. I can read almost any kind of PJO fanfiction, as long the writing is good. High School AUs, Dark or Evil Percy, And even Betrayed Percy(only sometimes though). I've read some of the good ones, like

• Falling For You by 1967HogwartsGoddess
• Daughter Of Wisdom Series by Shikii (If you've not read it, I recommend this. It's a retelling of the original PJ series from Annabeth's POV but it's also one of the only fics which captures the tone and quality of canon)
• Son Of the Western Seas, Reign Of The New Protogenoi, most of Aaaklusmos14 an seaweedbraen's fics. I would also recommend seaweedbraens one shot soulmate AUS which are really fun to read, She just nails character interactions.

So, if you have any good fics that I've not read yet, please mention them. Thank you.

 

I'm quite sure that that particular fandom is dead for a while now, and if you're out of fics to read, it is probable that there are no decent ones left. It is the sad reality of such fandoms and the only thing I can recommend to you is for you to broaden your specter and get into other ones. Also, there are at least four same threads asking for the same thing so you can check them; just write Percy Jackson in search and hope for the best. If even that doesn't work, I'm 70% sure that there are some decent Percy Jackson/Harry Potter crossovers in the library. If that isn't to your tastes, well, tough luck then.

I'm aware that this comment isn't very helpful about your inquiry, but it's the best one I can give. I honestly can't remember the last PJO fanfic I read, and tbh I kinda overgrew it or whatever so I can't provide any names for you to try out.

 

Here,

https://forums.darklordpotter.net/threads/good-percy-jackson-fanfiction.35733/

https://forums.darklordpotter.net/threads/percy-jackson-and-the-olympians-stories.28574/

https://forums.darklordpotter.net/threads/percy-jackson-fiction.28229/

https://forums.darklordpotter.net/threads/percy-jackson-fics.23712/

https://forums.darklordpotter.net/threads/percy-jackson-fics.15783/

 

Ryuugi's Prytaneum is an okay way to kill an afternoon. It's a PJO/DanMachi crossover but I went in without any prior knowledge of the setting and it worked out well enough. Basically a weeb light novel fantasy world with RPG mechanics.

Very different flavour but the PJO/Dresden fic by the same author is a novel experience.

 

As someone who isn't a huge PJO fan, and whose opinion of DanMachi is a resounding "meh."

Prytaneum is fucking great.

 

Salt-Breaker by Otters. The other ones mentioned above too.

 

Classical Hero by The Oddfather on Spacebattles is pretty damn good. Not many PJO fics nail Percy's personality so well. That being said, it is a Worm crossover and operates on the assumption that you are familiar with and/or have finished the series.