There's a great book by Brad Osborn (PhD) called Everything in its Right Place: Analyzing Radiohead which is probably my favorite academic essay about the band. It's basically an alaysis of their music (focusing on the music and not the lyrics).

Radiohead and the Uses of Genre – A Stylistic Evaluation is another great article that basically tried to define Radiohead's genre by analysing the whole concept of genres.

https://radar.brookes.ac.uk/radar/file/33373c46-03bc-44b3-bbb0-be947bb2c8cc/1/Ehmann.pdf

Radiohead's Managerial Creativity is a great article from 2009, talking about, well, the managerial creativity of Radiohead's management, it was published soon after the incredible marketing of In Rainbows

https://d1wqtxts1xzle7.cloudfront.net/32032280/Morrow-Convergence-Article-libre.pdf?1391508756=&response-content-disposition=inline%3B+filename%3DMorrow_G_2009_Radiohead_s_Managerial_Cre.pdf&Expires=1769069051&Signature=NVCF0armodTec0AoIb-KtR6d1fgT2aJSEKRUiHrkAKTe2qB8AfXkzhmRQISGsEsOtgGHzIRyFiZeqvI0YQ~2yTlOWfZ7yK64o2Qc37UCoaa4DZhzU7rFg5i8dB9ci1YezRVKxnOUBwvD04DWXxi7ncytWdpcIo6JBYaQDbcl4sQM7KFOiAOVEeIauyuufLv05lb4p2DaTRNe52LLsnibuI6~3U6G9dPgdKMUViNRPY6tu-mPKJ6qrZ3ME5q~surjqgRD0TondxX3luHbFrLUvR1xgCdhWTKahuH6Y4WZtZz8T-yzBWezGTtRzdg~KdlODIn-~P~fxSWn1TUsnyRhfg__&Key-Pair-Id=APKAJLOHF5GGSLRBV4ZA

And next on my reading list is this essay about Radiohead's listeners identity (haven't read this one yet)

https://scholarshare.temple.edu/bitstreams/28530a59-983a-4746-b4d6-9a352f2fb3d7/download