Oooh! I love typing games! It's speed practice and fun at the same time
In terms of the hit or miss world of edutainment games; I grew up with
Type To Learn 3.
Functionally, it's your bog standard teaching software with some light game elements in the form of different modes of play. But the game really shined with its unique aesthetic which follows Father Time as he travels through time and space in a flying car. As such, there's also a bit of basic history sprinkled in! This was installed on my school's computers but I also still have my own copy which I got from a catalogue; back when those were still a thing
My favourite typing game is Typing of the Dead, hands down!
As for fun games, I have to agree with Cobra!
The Typing of The Dead is really as good as it gets! Though,
The Typing of The Dead: Overkill is also a strong follow up. You can even get mods easily on the Steam version which can replace the vocabulary! It's really the most brilliant way one could make an on-rails shooter enjoyable on PC without the aid of some kind of gun accessory.
I've also got a few typing games that I haven't had a chance to play yet that look interesting!
Backspace Bouken
,
Epistory - Typing Chronicles and
The Textorcist: The Story of Ray Bibbia.