My favourite phc band ever is The Used, i suggest you check them out, especially if youre into the mcr band lore itself cuz theyre pretty connected.
From First to Last is another one of my faves. The lead singer of the first albums is no other than Skrillex actually! If you didnt know
Thursday is also a must-listen(?) as theyre one of the most influential phc/(real) emo bands. Check out Ink and Dagger as well
Brand New is my fave emo band, and it goes amazingly with TBS which you already know based on your page. Listen to "Theres no 'I' in team", then to "Seventy times seven" and do some cognitive neuron formation. TBS/Brand New beef is the most important emo story of forever.
The Academy Is... actually goes in complect with Cobra Starship and FoB. Thats just how it is...
Some emo bands:
Jimmy Eat WorldÂ
The Get-Up Kids
At the Drive-In
Cute is what we aim for (It's almost like never shout never! check em out)
Sunny Day Real Estate (ofc)
Dashboard confessional (A very important emo band. Accoustic but much sadder than NSN)
Say Anything (Artistical and theatrical? You have to hear for yourself)
Some less-known phc bands:
LoveHateHero
Scary Kids Scaring Kids
Funeral For A Friend
Destroy Rebuild Until God Shows (the lead singer of Chiodos is in there too!)
Senses Fail
Lady Radiator
Burden of a Day
Haste The Day
Planes Mistaken For Stars
Fall Of Troy
Early To Bed
The Relapse Symphony
Pale New Dawn
Not For Now
Goodbye Soundscape
Unwanted Superheroes
Circa Survive
A Bullet For Pretty Boy
Hail The Sun
A Static Lullaby (Check out their cover for Toxic!!)
A Skylit Drive
Oh Romeo!
Emarosa (Not exactly phc - more swancore. Check out Dance Gavin Dance if you like it, thats the band that started it all)
Reclaim The Fallen
A Change Of Pace
Love Driven Fury
Takes The Crown
Sky Eats Airplane (Also a bit of electronicore)
Thats it for now!!! I definitely have more reccomendations if youd like. message me and we could be friends also!!