Well, one possible plot could be that Squidward gets fired because he finally snaps at Mr. Krabs over his cheapskate ways. He then has to figure out how to pay his bills and find a new job. Maybe he tries to start his own art business but struggles with marketing it.
Mr. Krabs would surely be a main character. After all, he's the one who fires Squidward. He might be portrayed as the bad guy in the story, or perhaps there could be some backstory that makes his decision seem more understandable.
One possible plot could be that cloud is tired of his current job situation. Maybe he has a difficult boss or uninteresting tasks. So, he starts to intentionally make mistakes at work, like coming in late, not meeting deadlines, or being rude to clients in an attempt to get fired.
Obviously, cloud would be the main character. There could also be his boss, who is constantly frustrated by cloud's actions. Maybe there's a coworker who tries to help cloud, thinking he's just having a bad time, not realizing he actually wants to get fired.
Perhaps in the fanfic, Harry teams up with the other students to stage a large - scale protest against Umbridge. Their united front and the chaos it causes might lead to the school board or the Ministry of Magic realizing that she is not fit to be in charge at Hogwarts. Or Harry could use his connections, like his friendship with Sirius or the Order of the Phoenix members. They could dig up some dirt on Umbridge from her past that makes it impossible for her to continue teaching at Hogwarts.
I'm not familiar with this particular fanfic. But usually, when a character tries to get fired, there could be underlying issues in the story's world. It could be related to conflicts with superiors, a sense of being trapped in a role that doesn't suit the character, or a plot device to lead the character into a new and different situation. Without reading the fanfic, this is all just speculation.
I really like the fanfiction 'Squidward's Secret Admiration'. In this story, Squidward has a hidden admiration for Squilliam that he struggles to come to terms with. It's really interesting to see how he deals with these new - found feelings. Then there's 'Squilliam's Surprise' where Squilliam does something completely out of the ordinary that changes their dynamic. And 'The Unlikely Bond' is also a great read as it shows how they form an unexpected bond.
There might be a Squidward fanfiction where Squidward time - travels. He goes back to when he was a child and tries to change some of the events that made him so grumpy in the present. It could be a heartwarming story of self - discovery and growth.
Yes, there are some interesting ones. You can find them on various fanfiction websites. Some focus on their unique friendship and add a touch of 'love' in a very platonic and endearing way, like imagining them having deep conversations and truly understanding each other on a new level.