Consider:

A dream journal

Shrines to your favorite things

A list of links to your favorite places online

Reviews of stuff! Any kind of stuff! Books to nail polish to your local abandoned warehouse

Any art you have made

A point and click adventure in website form

Tutorials for something you are good at

journal style blogposts

eyemelting conglomerations of gifs

making pages appearances themed around your favorite colors

using your favorite textures from 2002 RPGs as tiling background images

I like to browse random neocities websites you can find some really fun stuff. ribo.zone is one my partner showed me recently which I quite liked.

the world is your oyster in which to Just Post