Boya BY-M1
Amazing value and impressive sound quality makes this a great deal

Transducer type: Condenser | Form: Lavalier | Polar pattern: Omnidirectional | Frequency response: 65Hz-18KHz | Power source: LR44 battery | Supplied windscreen: Foam

Great sound quality Very low noiseA bit oversized Easy to break

Audio-Technica AT8024
Big on price, but has the features to match

Transducer type: Condenser | Form: Shotgun | Polar pattern: Cardioid mono + Stereo | Frequency response: 40Hz-15KHz | Power source: 1 x AA battery | Supplied windscreen: Foam + Furry Windjammer

Good quality for mono/stereo
Natural sound
A little high-frequency hiss is evident

Sevenoak MicRig Stereo
Similar quality can be had in a more convenient unit

Transducer type: Condenser | Form: Stereo-only | Polar pattern: Wide-field stereo | Frequency response: 35Hz-20KHz | Power source: 1 x AA battery | Supplied windscreen: Furry Windjammer

Decent quality
A wide stereo field
Very bulky as a mic
Not tripod friendly