This card would be easy for you to get from Amex:
https://www201.americanexpress.com/c...gmID=undefined
This citi card is also designed for college students or those with limited credit:
https://www.accountonline.com/ACQ/Ap...9BBF112C24592C
Apply for the AX first and then after approval or 5 business days apply for the other one.
The Discover card is not looked upon favorably and will not help you as much.