Hello Lee Kong,

I think the whole sentence means:

xiàn zài zhēnde gāi shàng nǎ zhǎo qián qù
现在真的该上哪找钱 去

“Realy where do we look for(search 找) money(找钱 as one word means change!) from now.
ie Where do we look for money.
该上 is not one word actually but two, 上 being part of the structure 上哪 去 where …. go to.去denoting a direction away from the speaker.
Hope I have ilucidated your question …

Hope I am right Benny..

万事如意

陆蓝克