Look for open-back headphones known for instrument separation and soundstage, such as the Sennheiser HD600 series, HiFiMAN Sundara, or Beyerdynamic DT 990 Pro. These will allow the "guitar army" to breathe without sounding trapped inside your head.
The authentic 1993 release has a specific Disc ID. You are looking for the original (UK) or 0777 7 88267 2 9 (US). The runout matrix on the CD should have no "Remaster" text. smashing pumpkins siamese dream 1993 flac best
Sharper clarity, brighter high-frequencies, and a massive boost in the low-end. The separation between the layered guitar tracks is much more pronounced. such as the Sennheiser HD600 series