I’m a huge shonen and seinen fan, and I’ve been using my sites.google profile sites.google profile to organize everything I’ve read and watched. It’s basically my personal wiki—I list manga I’ve finished, arcs I loved, and even rank my favorite OP/ED songs from studios like MAPPA and Ufotable. The downside? It takes a bit of time to set up compared to dedicated tracking apps, but I like being able to customize the layout exactly how I want. Plus, it’s free and links back to my MAL list.