How to avoid redundancy in transcribing songs?

[Mr. Shaky Fingers]

I'm transcribing a song to piano and i want to avoid making it sound redundant everytime the chorus repeats.
Should I transpose it to another key? What key then? Should I transpose it an octave higher? Add ornaments? That kind of stuff.
Or better yet, any classical pieces you reccommend to study? I know there are many of them but I don't have any musical background about this.

Any ideas?

Thanks!

[Melodia]

Well if you want to study transcribers, you will of course want to start with Liszt, especially as he transcribed MANY songs, almost all of which are here.

[Mr. Shaky Fingers]

oh no...not Liszt
although you have a point and i agree with that.
i think Liszt would be a little too much.