Audio quality is more important than video quality. That is why everyone wanting to make good video should have a camera mountable shotgun mic. There are some great ones on the market and many of them cost a good amount of money. This Comica CVM-V30 mic is a great mic at less than half the cost of some of its competitors, like the RODE Video Mic. I have filmed a number of youtube videos with this mic and I really like the audio quality and how easy it is to use. This condenser mic fits right in the hot or cold shoe of your camera and is powered by two AAA batteries. There is a 10db boost and bass roll off switch, which I love. If you are looking at purchasing a camera microphone
, I recommend this one.
https://www.amazon.com/Comica-Super-Cardioid-Directional-Photography-Lightweight/dp/B06XB87MDK