Telephoto lens for concert photography

Hello!

Next month, i will be going to a kpop concert ( i bought the front seating) and i've recently upgrade my phone from iPhone X to iPhone 17 Pro.

So i want to ask, do you have recommendations for any attachable telephoto lens brand that i can use?

Because i currently surveying for Sandmarc, Ulanzi & Apexel.

If you have recommendations, please let me know here ya!

thank you!