Here are some metal band name suggestions for a groove metal band, categorized for easier selection:

Aggressive & Brutal:

• Skullcrusher
• Gravehammer
• Ironclad Maelstrom
• Serpent's Coil
• Bloodforged Colossus
• Obsidian Throne
• Rusted Gears of War
• The Mauler's Grip
• Shattered Sanctum
• Venomous Decree

Dark & Mysterious:

• Shadow Syndicate
• Midnight Ritual
• Abyssal Echoes
• Phantom Reign
• Ebon Gate
• Crimson Veil
• Whispers of the Void
• The Obsidian Mirror
• Charnel Choir
• Necrotic Bloom

Technical & Complex:

• Fractal Fracture
• Algorithmic Annihilation
• Polyrhythmic Plague
• Dissonant Decree
• Quantum Chaos
• Synthetic Slaughter
• Binary Breakdown
• Chromatic Catastrophe
• Harmonic Holocaust
• Modular Mayhem

Evocative & Atmospheric:

• Ironclad Sky
• Burning Ember
• Silent Storm
• Frozen Wasteland
• Crimson Dawn
• Ashen Remains
• Eternal Winter
• Whispering Winds
• Serpentine Path
• Celestial Ruin

Short & Catchy:

• Groove Tomb
• Ironclad
• Skullfire
• Bloodrite
• Gravemind
• Hellfire
• DoomBringer
• Voidborn
• Deathgrip
• Rift

Remember to check for trademark conflicts before settling on a name. Consider the overall aesthetic and message you want your band to convey when making your final decision.