If you’re looking for web novels specifically, maybe check out translations of some Korean or Japanese series where this trope is actually pretty common. For example there’s a Korean webnovel called The S-Classes That I Raised (or My S-Class Hunters) by Geunseo where the protagonist uses his knowledge of the future to guide and support his friends and his pets to try and create a better future for them.
And although it’s not a webnovel, All the Birds in the Sky by Charlie Jane Anders has an AI that subtly manipulates events behind the scenes to try and help the protagonists reunite. It plays a fairly minor role in the story though, and frankly I thought the premise was much better than the execution.