Some Christian Artists that I forgot to mention in my last post. (Seriously, so many that I forgot!) (Same as before, kinda long and rambly)
Switchfoot!!! My sister was really disappointed to see I didn't include them. 'Only Hope' the entire 'Beautiful Letdown' album. Not quite rock, they have a down to earth "surfer music" sound that can make you feel the emotions in the music, and leave you feeling lighter, as if you felt all the feelings in that short time. (My sister ghostwrote this)
Fireflight, is early 2000s rock personified. My early teenage years were spent with them on all the playlists. 'Unbreakable' 'For Those Who Wait' and 'More Than A Love Song' are a few top songs for me. They had the Christian early 2000s alt. sound without sounding "too Christian" (which is a real problem with some artists.) They talk about the real stuff, but they're still easy to jam to. (Thank you to @dp-marvel94 for mentioning them when I somehow didn't)
Nine Lashes is good too. I've only ever heard 'Anthem For The Lonely' but, I wanted to give them a shout out cause that song is amazing.
Plumb is a balance of Christian Pop, Rock, and Indie Alternative. 'Cut' 'In My Arms' 'Blush' 'I Can’t Do This' and 'Need You Now' are top tier songs that shaped my music taste. She is incredibly talented and has a husky kind of voice that is incredibly distinctive. I saw her at Winter Jam (the only concert I've ever been to) and geeked out super hard.
Superchic[k] is very near and dear to me. They have a very pop rock sound that nears alt. they have a lot of great songs and a bunch of mixes of songs like 'One Girl Revolution (Battle Mix)' which, if you ever need a girl power song, that's one to make you feel like you can do anything. 'Stand In The Rain' 'Rock What You Got' 'Pure' 'Princes and Frogs' 'Suddenly' and 'Hey Hey' are all super good and really fun to listen to. This band is definitely one I can't rec enough.
Relient K is technically not rock. At all. Pop punk all the way. But, they make the list because I love them, and I said so. 'I So Hate Consequences' 'The Only Thing Worse Than Beating A Dead Horse Is Betting On One' 'More Than Useless' 'Who I Am Hates Who I've Been' 'The Pirates Who Don't Do Anything' and 'Sadie Hawkins Dance' are purely amazing and filled with early 2000s energy. I just love them a lot and had to stop before I recced their entire discography.
Hawk Nelson, like Relient K, is Pop Punk. They are amazing and full of energy. The entire 'Smile, It's The End Of The World' album is fantastic. 'From Underneath' 'California' 'Take Me' and '36 Days' are also great songs. They just fill me with so much joy. They have a very fun and "bouncy" feeling to them that just makes me smile. (My sister describes them as a strange combination of Three Dog Night, Bowling For Soup, and Bare Naked Ladies. Bouncy like TDG, conversational/verbal vomit like BFS and BNL.)
And, a quick shout out to Veggie Rocks! The only Rock album that ever came from VeggieTales. It was a bunch of songs from episodes of VeggieTales, performed by popular rock groups, and singers at the time. Rebecca St. James, Stevenson, Sanctus Real, Newsboys, Superchick, Paul Colman, Audio Adrenaline, Relient K, The O.C. Supertones, Tait, and Skillet provided their talents to bring these songs to new life.
For anyone whose never heard of it, VeggieTales was a kids show, that explained Old Testament Bible stories and morality through the adventures of sentient vegetables. It had a lot of fun Silly Songs tm.