Assembly is one of those things where setting your ambitions higher than is usually advised can be wise.

You could try writing a game (perhaps using Raylib) or a pixel art editor. Or maybe a little web application for your Homelab.

Simple C libraries (Raylib, libcurl, early win32 APIs) tend to be dead simple to use from assembly.

Most asm tutorials are either bare metal / OS or “we will talk directly to the kernel”, but there’s no reason you can’t interface with higher level libraries and make real apps and games. It’s simpler than it sounds because a whole lot of your code will just be moving things around between registers and memory in order to make function calls and bookkeep your program state.