OP, you might consider renting a pair from a Guitar Center or the like, and they might make a recommendation of what may work for your efforts....
....or do the Amazon 30 day tap dance.... ;)
Microphone recommendation for recording 2 channel demos
Looking to record sound demos from a smartphone but looking for a better microphone. Something like sound sommelier. Unfortunately he doesn’t disclose what mic he uses. Budget would be $500. Thx