I have three different credit cards that have a pretty low interest rate and I've been very happy with all three of the below credit cards.
The credit cards I have that have a low interest rate are.
Capital One VentureOne Rewards Credit Card with A variable APR of 14.24% - 24.24%
Discover it Cash Back Credit Card with A variable APR of 14.24% - 25.24%
Chase Freedom Unlimited Credit Card With A variable APR of 17.24% - 25.99%
Out of all those the Capital One VentureOne Rewards Credit Card has the lowest interest rate but I love all the credit cards.
For the lowest interest rate on a credit card I would go with the Capital One Credit Card that I listed above.