The only difference between a signature loan and a personal loan is the collateral associated with them. A signature loan is always unsecured, which means it doesn't require collateral, and a personal loan can be unsecured or secured by collateral. The term "signature loan" is actually just another way of referring to an unsecured personal loan.
Getting a signature loan may be difficult because it is risky for lenders to offer them due to the lack of collateral. To qualify for one, you'll need to be at least 18 years old, have a credit score of at least 580 and have enough income to make monthly payments.
If you're ready to start comparing options, check out the top-ranked signature loans and personal loans on WalletHub. You can also pre-qualify with multiple lenders by using WalletHub's free pre-qualification tool.