Bakugo doesn't really seem to be into reading. He's all about action and showing his strength. Reading might seem too passive for him. But, we can't completely rule out the possibility that he might read something related to hero techniques or strategies, but there's no evidence that he has a general love for reading.
There's no strong indication that Bakugo is an avid reader in general. His focus seems to be more on hands - on activities like training and fighting. However, that doesn't mean he never reads, but it's not a prominent part of his character that we've seen so far.
I don't think Bakugo is much of a reader. His whole demeanor and actions are centered around being physically strong and being a top - notch hero. Reading requires a certain level of stillness and patience that doesn't really match his fiery and impulsive personality. If he does read, it would probably be something that directly benefits his hero - making journey, not for pleasure or general knowledge.