
If you're looking to improve your core muscles and get a great full-body workout at the same time, kettlebells are a fantastic option. You don't need to spend a fortune on equipment either, because a single kettlebell is all you need to get started.
I highly recommend the Amazon Basics Cast Iron Kettlebell—it's a really well-made weight that I use myself. The 10 and 15lb versions are ideal for beginners and currently have 15% off the usual price making them even better value.