I really like Super Supportive
It's my favorite on-going webserial! I'm currently on Chapter 234, which is about 1,178,237 words in.
To summarize, Alden Thorne is a teenager in a world where aliens made a deal with humanity that resulted in a small portion of the population developing superpowers. Alden's dream is to get superpowers and become a battlefield support hero, but after obtaining them, he slowly learns new secrets about his powers' nature and the magical universe at large that change him completely.
Despite superpowers being in the name, Super Supportive is not a traditional superhero novel. There isn't as much of a focus on vigilantism, justice, nor action as you'd expect from a Spider-Man comic. Most of the focus is on fascinating world-building and Alden's development as he grapples with trauma from both his past and events that happen in the plot. If you really like magic systems and alien cultures, this is probably more for you.
Speaking of Alden's development, it's good. You get a lot of time for reflection from Alden between major plot events. It feels very real and very satisfying. One thing to note is that this is a slice-of-life novel, which means that the bulk of the story is this reflection by Alden and also his interaction with other characters instead of intense action or drama-- even if that does exist in the story. The author is not afraid to develop the plot and have lasting consequences for Alden, which I find that some slice-of-life stories may not do. Even when Super Supportive's pace is slow, I always feel like something is gained from each chapter and that the story won't go into a hole.
TLDR: Super Supportive is an amazing webnovel. Please read if you like magic systems, alien & superhero society worldbuilding, and a regular update schedule