Since the flute is a rather common instrument, you can find a lot of flute teachers everywhere. But your best bet is to go to the nearest instrument rental shop, where there’s almost always a list of local instructors. And if you feel like traveling to the shop is a pain, then by all means Google flute teachers in your area. There’s always someone qualified close to where you are. Or in the event you can’t find a single teacher, you can opt to join flute learning groups and communities.