Aries/Aradia: Fail videos, Amazing feats of human ability, and Magic tricks

Taurus/Tavros: Daily blogs and Reactions

Gemini/Sollux: Theories, Let's plays, or Educational

Cancer/Karkat: Talkshows and ongoing series

Leo/Nepeta: Let's draw series, make-up tutorials, and animations

Virgo/Kanaya: little, unknown Youtube channels

Libra/Terezi: Political debates and comment readings

Scorpio/Vriska: Horror story readings, Unnerving videos, and the...unmentionable 

Sagittarius/Equius: Comedy and Movie trailers

Capricorn/Gamzee: Prank videos and Parodies

Aquarius/Eridan: Music videos and Popular videos

Pisces/Feferi: The Cute, Awesome, and Original parts of Youtube

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(For this part, I thought it would be nice to introduce each troll to a YouTube channel or Video that fits their genre.  Feel free to visit each one yourself.)

Aries/Aradia: FailArmy was hilarious.  Aradia really like the one where the high-speed skaters slide off their boards into cars.  Maybe she should try to do that sometime.

Taurus/Tavros: Tavros really enjoyed watching the Fine Bros React channel's videos.  It was nice to see how others feel about some of the videos he likes and hear their opinions on it.  Not to mention it even reflected on every age group, from children to elders.

Gemini/Sollux: Despite the fact he didn't agree with every argument made in the videos, Sollux found the Game Theorists channel okay.  It tried to speak at an intellectual level about a made-up world of a videogame.

Cancer/Karkat: He honestly wasn't the biggest fan of Good Mythical Morning, but Karkat found it was good enough not to be intolerable.  They hosts were strange, but they spoke about some odd topics that interred him enough.

Leo/Nepeta: Nepeta didn't know what to expect watching Pinkstylist, but in the end she got a few good laughs.  He used makeup to look all scary and then joined a chat roulette site.  She really wanted to try out the Cats! design.

Virgo/Kanaya: While not the must popular youtube channel, Kanaya couldn't help but view the videos of Rebeltaxi and Zalzar.  One reviewed old cartoon shows while the other focused on online entertainment.  While they had contrasting styles they seemed quite entertaining.  She left a subscription.

Libra/Terezi: The Presidential debate was boring.  The people had no idea what they were doing.  Terezi knew she could do better.

Scorpio/Vriska: Night mind was messed up.  It review the strangest, creepiest, and the most disturbing things on youtube.  This was the stuff that got blood pumping.

Sagittarius/Equius: The work of the animator "Animatedjames" was quite lewd.  It used some language and odd visuals, but the humor was a exception.  After watching a video, Equius required a towel.  Not to mention the proud hoofbeasts pictured.

Capricorn/Gamzee: Weird Al is one musically talented M***********.  Despite the fact Gamzee's never heard the originals songs, they still sound catchy.

Aquarius/Eridan: The musical talent of Mystery skulls is only improved by the wonderful animation talent of Mysterben27.  Eridan enjoyed all of it: The story, the images, the sound.  This land-dweller truly peeked his interest.

Pisces/Feferi:  Aphmau is a wonderful channel.  Feferi loved the charming characters, story, humor, and the cute kawaii-chan.  She would definitely watch this for hours.