Sunbëarer is a stoner/doom metal band from Asheville, North Carolina, formed in 2022, contributing to the city's fertile heavy underground scene with fuzz-laden riffs and slow, hypnotic heaviness.

Suncinder is a Detroit, Michigan act formed in 2019 that melds progressive melodic death metal with deathcore, layering technical riffing and melodic complexity over punishing, breakdown-driven passages.

Suncrusher is a Chicago, Illinois groove metal and metalcore band formed in 2017, built on heavy mid-tempo riffs and melodic sensibilities that bridge the aggression of metalcore with groove metal's rhythmic punch.

Sunday deliver emotive, melodic rock that balances vulnerability with dynamic intensity, drawing from the traditions of 90s alternative rock and emo to create a sound that resonates with authenticity and emotional weight. Their songwriting favors introspective, narrative-driven lyrics delivered over atmospheric arrangements that build from quiet tension to cathartic release.

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Sundering Titan is a black/sludge metal and crust punk band from Great Falls, Montana, formed in 2014, combining the nihilistic fury of crust punk with the corrosive heaviness of black and sludge metal.

Sundyr is a Washington State doom metal project formed in 2025, emerging from the Pacific Northwest's deeply rooted doom and heavy underground scene with a focus on slow, crushing heaviness.

Sunfather is a doom/post-metal band from Memphis, Tennessee, formed in 2017, blending the dark emotional weight of doom with the expansive, textured dynamics of post-metal in a sound shaped by the South.

Sunfuneral is a Colorado black metal project formed in 2025, channeling the raw, austere tradition of the genre through a high-altitude lens.