i'm so glad i spent my formative years in the 90s....
a trip down memory lane.....and hopefully perhaps what your looking for
i didn't see any of these in your last.fm library
Texas Is The Reason
that breakdown is amazing (just get everything by them...one ep one album)
Fugazi
it's good to be the king (start with 13 songs.....climb out of that whole in about 7 months and contiue)
Rival Schools
this man should be worshiped (although their new album is quite good....it pale in comparison with United By Faith)
Quicksand
see what i mean? ('Slip'...possibly the greatest post hardcore album of all time)
Elliott
not 'smith'...better in my opinion (US Songs....over and over and over)
Farside
just grab any sampler from revelation records....specifically one released in the late 90s/early 00s (Rigged is a masterpiece)
Understand
seriously underrated band....and forgotten
(the ep Bored Games is a great place to start)
Samiam
"emo"'s smarter older brother (92's Billy is damn near perfection)
Far
not including Far would be like Dally missing the rumble (water & solutions is the soundtrack to your next break up)
Jawbreaker
Jawbreaker is the best band that will be mentioned in this entire thread
see what i mean?
yup.....
enjoy