Ok, let me start by saying that a tripod is a must for fireworks if you want to shoot them correctly. These are my best photos that I took, but it's also only about 5% of the them. Most of them turned out blurry due to my little movements.
I'm including the settings for each shot below the photo. Like they say, photography is 99% trial and error. Got a lot of errors last night, but I learned a lot about night and how to capture bright lights at night.
These were all shot with a Canon 5d Mark IV and the Canon 24-70 lens. And all these photos are unedited.
Without further ado, here you go! And don't forget to smash that Upvote button at the bottom of the post!
ISO 1250 f/5.6 70mm 1/5 sec
ISO 1250 f/3.2 70mm 1/13 sec
ISO 1250 f/3.2 57mm 1/40 sec
ISO 1250 f/3.2 57mm 1/60 sec
ISO 1250 f/3.2 54mm 1/13 sec
ISO 1250 f/3.2 70mm 1/13 sec
ISO 800 f/2.8 70mm 1/10 sec