Please help me pick my last name

I have an opportunity to change my last name. Only once in a lifetime, obviously, so I am super nervous and I'm starting to run out of time...

I wanna ask you guys: are there any fav last names - because of the books/anime/manga connection, bc of meaning, or how it sounds etc - that you would recommend?

I am not sure if I'll be allowed to choose any I would come up with, but there is one sure rule - there can't be any celebrity with that last name, or sb famous otherwise, like writer, Nobel-prize winner etc.

And if I will have to choose from my family names I would go for Ackerman, Adler or Werner, which one do you like best? Also, I wanna move to Japan next year so I'm not sure if any of it doesn't sound bad in Japanese or smth. I am so lost...

I would be most thankful for any help and opinions you would share! <3