Im not sure if you know but Lil Peep and XXXTentacion aren't considered goth music, they're rap. When we say goth we're talking about the music-based subcultre around the gothic rock genre, it features dominant bass lines, effects heavy guitars, and minor keys. There's a lot of good artists but some of the big ones are Bauhaus, The Cure, Sisters of Mercy, and Siouxie and the Banshees, but I'm also a big fan of Witching Hour. The community is centered around this, its more than just dressing spooky. That would be like wearing cowboy boots and calling yourself country without being a fan of the music. I hope this helps, let me know if you have any questions or want recommendations!