Some of my favorites are Toxicity(album)- System Of A Down, might be a little heavy for your tastes but you should still enjoy Chop Suey, Aerials, and ATWA. Soldier side is another good song by them Origin of Symmetry(album)- Muse, this album is fantastic is my personal favorite from Muse, if you enjoy anything from Mise you’ll love this album Black Holes and Revalations(album)- Muse, like I said above, if you like Muse you’ll love this album Wish You Were Here(album)- Pink Floyd, do I even need to say anything about this album? Just go listen to it Damnation(album)- Opeth, great acoustic melodies in this album as well as emotion heart put into it too. It’s very complex yet calming Parachutes(album)- Coldplay, this is Coldplay at their peak, they fell so far from this album imo OK Computer(album)- Radiohead, one of the greatest alt rock albums ever made imo, if you like alt rock go listen to this Nevermind(album)- Nirvana, this one speaks for itself. Raw, loud, simple, and sloppy. It’s great Schism- Tool, fantastic song from the vocals to the drums and especially the bass Those are just a few things I really enjoy listening too. I chose not include harder stuff because I’m not sure if you’re into that sort of stuff