Leica Q would be an excellent choice if you need to have a taste of Leica M system. You will be happy with both color and black and white photos with Leica Q!
Leica M Monochrom typ246, Elmar 24mm. Liberate yourself from colors and high ISO concerns. Just focus on capturing the moment.
[YouTube] Leica M Monochrom Black and White Video. Please sit back and watch my video. (라이카 모노크롬으로 만든 흑백 영상입니다. 편안하게 관람해 주세요. 감사합니다.)