The games I'm focusing on are the ones using the Rayman 1-engine, sometimes named Rayman Edutainment. There are two of these games. The first one is internally named EDU and is for learning math and reading. The second one is internally named QUI and is for learning a second language. These have been released under various names, so there's no simple way to title them. Some names include Rayman Junior, Rayman Brain Games, Amazing Learning Games with Rayman, Maths and English with Rayman and English with Rayman.
For the archive I have uploaded all the disc dumps to archive.org here. You can find the download list here. This only includes the MS-DOS versions since the PS1 ones are much more widely available with there only being 5 variants of those released in total.
As you may notice in the archive there are still some games missing. Some ones are also missing proper dumps and instead only have the game data. I've created a sheet here in order to catalogue all the game releases (you can switch between EDU and QUI at the bottom of the page). I've recently also added most of this info to the wiki. If anyone reading this happens to have a copy of any of the games listed as not having proper dumps then I would greatly appreciate if you could help add those



