[RichardJ]

>> Every time I put an extension cord on it, the breaker pops<<

The extension cord is too small, too long or both. ALL electric motors have a current rating @ a specific rpm rating. The extension can't handle the current, voltage drops, motor rpm's drop off and motor temps shoot way up, letting the smoke out.

If the compressor runs Ok without the extension cord, get a longer air hose.
Before you shop for a larger compressor, you need to look at how much you're willing to spend to upgrade the electrical.
Then, you need to look at the CFM of the current compressor and any new compressor, Then, you need to look at the CFM requirements of the tools you will be using.

You can work with a compressor that is too small, but then you have to deal with higher compressed air temperatures and very high water condensation as well as compressor recovery time.