I bought the mic I use off of Amazon. The listing is below:
Neewer NW-700 Professional Studio Broadcasting Recording Condenser Microphone & NW-35 Adjustable Recording Microphone Suspension Scissor Arm Stand wit https://www.amazon.com/dp/B00XOXRTX6/ref=cm_sw_r_cp_apip_urejdYHZPZTUQ
There are plenty of mics that you can buy on Amazon that are reasonably priced. You will need to buy an audio interface to control the levels or, if that's not an issue for you, you can just buy the phantom power supply and plug it into your computer. You can use Audacity as a DAW without needing the audio interface.
Hope this helps.