Didn't even realize before we had a thread for this. Been listening to a lot of old stuff lately, back when i first got into the music via grafitti. The 1999 to 2004 NY underground scene was and is my favourite era in Hip-Hop, so i've been listening to a ton of Def Jux stuff (mostly Can Ox, who had the best Hip-Hop debut album next to Illmatic and Operation: Doomsday, some Cage stuff back when he was still on the label, Aesop Rock is also a favourite), lot of DOOM (Vaudeville Villain being my favourite album), lots of Ill Bill and Necro and a ton of others. I expanded my horizon to different musical genres over the years but underground Hip-Hop is my most listened to stuff.
I pump a lot of underground stuff from my city, too, tons of people i knew from school are semi-big names now in the scene and other, much younger dudes make excellent music as well. My city was the originator of what would be best described as our version of street/gangster rap and the artists from here are the ones that pushed german rap mainstream, even if they did and do relentlessly bite french and US artists.