this post gives information about the supported fonts for the Write Tool for Aseprite.

Aseprite Font

This is the default font for the Aseprite UI.

Aseprite Mini Font

This is a minimalist font used in the Aseprite UI.

RaccoonSerif Font

A clean serif pixel font that emphasizes readability. Made by Emhuo.

Strange Script Font

Created by Hechi to be used in a Gamejam.

Alagard Font

A Gothic font whose craftsmanship prioritizes readability. Created by Pix3M