Yang Peian's I Believe is very suitable for the ending atmosphere.
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If you are not satisfied with these two main songs, please try the following methods:
Maxim-Croatian Rhapsody
Ode to Joy-English DJ Edition, Mandarin Duck Edition and Mandarin Face Band Edition
Lockhouse Prison-soundtrack This is pure music, which is more exciting.
In addition, you can also use some old songs from Black Panther band, but they are a bit cliche.
If you are not satisfied, use Mass (the battle song of the German armored division), which is definitely domineering, but a bit solemn.