what's the most recent book or movie that you saw that you really liked? With the right approach you can make anything into a game I'm legit making a game about cupcakes lol.
Besides that, I would say old fairy tales or folk legends might be a good place to look. they tend to be short and with a fairly simple storyline that people enjoy seeing reimagined, giving you room for your own creativity. The typical setting of these stories work well with the default art assets of RPG maker as well.
what kind of games do you like making? that might help narrow down what kind of stories you might want to look at.
The nick "Toeuia" that I'm using comes from a, idk, you okay the chess game while chit chatting them. The first two are students. Then you know, finally, the champion, and then the champion's sensei. I played like this so many times until suddenly there's another chess master. Very naive but super smart. After he lost, he kinda advised me not to give up on chest. Because the next one was never seen beaten. Touya.
This is Krizzirk Toeuia Aeslan, I'm picking up transmission. Draftwingeds on, duty on, exhaust ready. 310 Immulicationsers approaching. I'll take the cake and----hold it!!! My Cosvere Radar detected 3001 of them!!