A 20-year-old entrepreneur's business of making custom wreaths is blowing up. Max Buechler has grown so much in four years that he has even become a product supplier for other crafters.

The lowest rate of the companies we track is from American Express Personal Loan, which has a minimum APR of 5.91%. The highest rate is fromNetCredit Personal Loans, which has a maximum APR of 99.99%.

Start with a lucrative bonus, add 3% back on restaurants, 1.5% back outside of bonus categories and flexible redemption options, and you have a winner. The card's rewards structure isn't the ...