There's the Warcraft movie which I personally found really entertaining, I recommend it.
There are also a few books, like the war of the ancients trilogy, it goes into the lore behind the night elves in WoW, but it might be boring for some people idk. I don't remember the names but there are other books as well.
If you like the lore the best thing is to just play the game tbh, since you get to actually explore all these different areas and interact with the characters etc.
specifically the ones you find on adult websites
the lore ingame rn is trash so it's good you're not playing
There are tons of different things like movies, comics, books etc. The best way to learn about it is from nobbel87 on youtube he is like the WoW historian basically and has a lot of good videos.
if you play the game only play through vanilla / tbc /wotlk content.
WoW is pretty fun if you've never played it before. There's a lot to do and explore.
wow died in 2011 after the cataclysm patch came out
i personally dont recommend wow (bit biased cuz guild wars player tho), if u just want lore go read some fantasy books, the gameplay its fine but u have to spend hella hours to become somewhat decent plus the monthly subscription is a bit too much (there are pirate servers, i dont know if still existe but there were a spanish pirate server very famous called "fumetas"). I would recommend you guild wars 2 cuz its free but its the biggest crap mmo ever so....
there are a lot of books just find with which one to start cuz I dont know now but there good for the lore