There are a few notable ones. The official Pokemon website sometimes has some generator - like features or resources that can be used. Another option is the Veekun Pokédex which, while mainly a Pokédex, can also be used to generate ideas for Pokemon in your fanfiction. It has comprehensive information on all Pokemon species, which can help you create unique and fitting Pokemon for your story.
Pokecharms is a great one. It has a wide variety of options for generating Pokemon.
I think Pokemon Generator by TheSilphRoad is quite good. It offers detailed and customizable Pokemon generation which can be very useful for a fanfiction. You can adjust various aspects like stats, moves, and appearance.
The best chapter pointer here is Chapter 266, "He Really Deserves to Die!". It opens with Upon hearing this, the deputy director's expression also turned serious. and closes on Now I see why Jiang Li despises her brother so much, utterly unreliable!"....
The best chapter pointer here is Chapter 261, "They've Ruined the Entertainment Industry!". It opens with The village chief's eyes nearly popped out after he heard the whole story. and closes on Is it necessary to be so guarded against me?.
Chapter 255 is the strongest chapter-level answer because it starts from Sounds pretty interesting." "I know this one! and follows through on He was wearing a dark red traditional jacket with exquisitely carved....
A practical answer is Chapter 259, because it turns the idea into a concrete scene. The chapter opens with While the villagers of Chixia Village were all immersed in the revelry of..., adds pressure through Wasn't she the same girl who had come to them with a group of villagers..., and ends on It.
The best chapter pointer here is Chapter 236, "The Murderer Returns to the Scene of the Crime Theory". It opens with The short-haired youth beside them chimed in, "That's right, senior, we... and closes on Everyone, try not to get too anxious." The crowd nodded, seemingly....
Chapter 218 is the strongest chapter-level answer because it starts from However, what surprised the guests even more was that the harvest Director... and follows through on Thinking about this, Jiang Yan started to feel his buttocks ache again; he....
The best chapter pointer here is Chapter 241, "Thieves Will Shed Two Tears When They Break In". It opens with It wasn't the director," Jiang Yan said with a blank expression, "Did you... and closes on However, as he turned around, before he could see the person properly, a....
A practical answer is Chapter 223, because it turns the idea into a concrete scene. The chapter opens with So, for the first time, Jiang Yan, who had always styled himself as the..., adds pressure through He could simply have someone send a flurry of gifts and make some..., and ends on The damned.
The best chapter pointer here is Chapter 231, "vLet Me Check Out the Strength of 5000". It opens with Huo Xuan felt a burst of secret delight in her heart. and closes on A cool sports car was one hundred thousand bucks..
Look to Chapter 232 for the clearest answer. It begins with But soon, she suppressed this strange feeling and slowly began to speak,..., keeps building through I'm the oldest, so I should get this chance!" "Get lost, I'm the youngest..., and lands on The moment he saw the information come through.