AvaliType

This is a client side mode that can be turned on and off with a custom keybind (Default P)

It replaces letters you type with circled version, those can then be change to whatever is needed.
The texturepack at https://modrinth.com/project/U9HtLeDi circled letter only to avali scratch

(credit for the font goes to: SomeGuyNamedDavid)
https://fontstruct.com/fontstructions/show/1108804/avali_scratch