Just get any credit card, doesn't matter what the interest rate or anything is. Just make sure you pay it off every month then the interest won't matter and it will help your credit rating. Make sure the card doesn't have an annual fee either. Then eventually you will be offered better credit cards. I currently have 7 credit cards because i opened four credit cards when i was 17 then went from there and now i have better credit cards with rewards.
Do not listen to the people that are telling you to get debit cards, if you want a credit rating you need to have available credit which doesn't apply to a debit card.
Also, getting a credit card from certain stores such as Victoria's secret don't necesarily work as a real credit card, they are only limited to that store.
Citi card would be a good card to start out with, you just have to be responsible with it, if you want a good credit rating you can't abuse it.