Within the Ruins - Floodgates
Within the Ruins - Versus
By Blood and Iron - Feral Was Her Butchery
By Blood and Iron - Infernal Offering
Woe of Tyrants - Basically any of their songs, never heard a shitty song from them. Anything in youtube recommended is what i would aswell.
Belay My Last - Watch Your Mouth
Arsonists Get All The Girls - Scobra Vs. Cupcake: Battle of the Bulged
The Faceless - Leica
Elitist - Principles
...Just gonna rant off band names lol, too tired to think of good songs that id recommend for a ton of bands >_>.
Textures, Cloudkicker, Sienna Skies, Vildhjarta, Greeley Estates, Grizzly adams - Fight back (Type that in for their channel), Forlorn - Worlds End (Type that in for their channel), Corelia, Limit Zero, Pillars, Stealing Axion, Erra, The Gun Show, See You Next Tuesday, Anime Fire, Evergreen Terrance, Unearth, Darkest Hour, Hydrodjent, Inner Sanctum, Monarchist, Kakuna Vs. Metapod (Type that in for their channel + Myspace Link), Nile, Periphery, Eggeh, Beneath The Sky, Disfiguring the Goddess (already listed by Blez but still talented guys.), Yeah What The Captain Said, The Red Chord, Viatrophy, Sylosis, Arsis, Haunted Shores, It Prevails, Close Your Eyes, Beneath The Massacre, In The Aftermath, SikTh, All Shall Perish, Salt The Wound, Insomnium, Darkness Dynamite, Anata, Mnemic, Chimaira, Threat Signal, Children of Bodem, The World We Knew, Far From Horizon.
All of those bands cover everything... (Djent, Technical death metal, technical melodic death metal, thrash, melodic metal, emo, death metal, hardcore, post-hardcore, experimental, progressive, screamo)