Zoom H4n Pro Portable Handy Recorder
If you want to level up and start recording in-person interviews I highly recommend the Zoom H4 which also can serve as a microphone itself.
Audio-Technica ATR2100-USB Cardioid Dynamic USB/XLR Microphone
This mic is a great entry-level mic for any newbie podcaster. The quality is crisp and clean. At a reasonable price, the mic will allow your podcast to sound legit without breaking the bank.
Audio-Technica ATH-M20x Professional Studio Monitor Headphones
Everyone needs one solid pair of headphones for editing and recording.