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I have found many solutions to this challenge. In total I found 6 Solutions. I will list some of the top dice numbers here...

1st: 6,5,1
2nd: 6,3,3
3rd: 5,2,3
4th: 5,3,4
5th: 4,2,2
6th: 2,1,1

I also found out that you in columns you can add a first and second solution to make three, so it is not possible to have three at the top.

I also found out that if you twirl the tower around it is a different solution
so then the top is still the same but the difference is in the sides so therefore
I have multiple solutions.