There are so many fun-looking modules from AD&D in the 80s or whatever that I can get free online, but I can't be bothered to learn the AD&D rules, so I can't play them :P Stupid 5e, ya had to go and be an improvement
You could potentially convert them to 5e. Stripping them down to basic tasks and a theme, figuring out what you'd use to fulfill those tasks in 5e, then rebuild things from there.
Can't say it hasn't caught my attention. I've never tried it. They have a club at my school, maybe I should check it out. Also you should get that tongue checked out 😛