Which credit card should I get or would benefit me more?

• credit card fees
• business credit card services
• debit credit card machines
• credit score ranges
• fre credit score
• credit report and score
• telco community credit union
• tremont credit union
• first trust credit union
• credit cards for balance transfers
• benefit loans
• veteran education benefit

I'm trying to build my credit n I want at least 1 credit card I was looking into a credit card that my union has called union plus credit card but they have 2 options a low interest rate or a rewards back card my score is about 617 idk which one would benefit me better

Additional Details

I don't have anything on my credit report already check I jus had no credit at all I'm jus now establishing credit

Which credit card should I get or would benefit me more?