One approach I used when I first started interviewing was to apply to a few jobs I wasn't really interested in pursuing to use as an opportunity to practice interviewing.
I use external recruiters for practice. They don't mind. They're either on their way up and are practicing too or good at their job and able to give you serious feedback.
Please don't do this. I get it's "good practice", but you are essentially wasting interviewing time -> company money for your little practice. Terrible advice.