Plug in your iPhone and check if it's charging:

If your iPhone is charging, congratulations!

If your iPhone isn't charging, repeat the isopropyl alcohol cleaning process.

If your iPhone still isn't charging after multiple cleaning attempts, and you confirmed with a flashlight that there's no debris, you may need to replace the charging port.

To replace your charging port, go to this page, find your iPhone's model, and follow the respective charging port guide for detailed instructions.