Which precure season is the best for sensitive kids

Hi! I’m looking for a show to watch with my little sister. She’s very sensitive and doesn’t like to watch anything with sad or stressful topics. I was hoping that Precure would be a good show that we could watch together! Could anyone recommend me the safest tamest season of it? I would watch it first to screen it but there’s so many seasons and related shows that I’m very confused 😅. I looked it up on crunchyroll and there’s at least 12 different things that come up. Please help I want to spend time with my sister but I CANNOT watch another episode of Daniel tiger lol.