To make sure that you get the very best rates and conditions on your loan quickly, you would do best to really look around to be sure you have checked all available options. Going to an Internet-loan-matching company, or business loan brokerage firm may help.
Any company which allows you to compare many lenders with each other, will give you the greatest chance of getting a good interest rate and payment terms on your small business loan.
After you have tried the usual funding methods, look around for any reliable, trusted alternatives. For example in the UK, businesses can get very good rates from Funding Circle. This is an alternative method of lending called peer-to-peer lending, where companies borrow money offered to them from via an auction process directly from other people. Because Funding Circle is accessed via the internet they have far lower overheads and so you have a good chance of paying lower rates.