Deck Colors

[Spook Town]

Dont complain that I left some out I couldn't put all of them in I like them all but these ones a bit more

[dakkaknight]

Of the options, I tend to favor Selesnya.

[Flarezium]

If you want a larger sample size, take a look at https://www.wizards.com/magic/quiz/default.aspx?x=mtg/quiz/guild/main. Izzet and Azorious tend to be on top on just about every favorite guild of ravnica quiz, just something to keep in mind.

[Drunk Cynic]

Azorius, Dimir, Rakdos, Gruul, Selesnya, Orzhov, Izzet, Golgari, Boros, and Simic.

Esper, Grixis, Jund, Naya, and Bant.

Jeskai, Sultai, Mardu, Temur, and Abzan.

I've played them all at one time or another. Think Sultai and it's derivatives (Dimir, Golgari, and Simic) are my preferences; my most entertaining combinations have been sourced from there.

My advice: work you way around the pie. Try all the colors, even the combinations that you think you can't play. In doing so, you'll learn how they work, and gain a better understanding for what your opponent might be plotting.