Zoo - little mana for big creatures. Base RG, with B and W often there as well.
Sultai Grind - Cantrips, inteaction, Uro.
URX delver/blitz - instants, sorceries, and things that care about them. Be on the lookout for cantrips especially.
5c niv - Oh yeah, this deck is real, and is even one of the better decks in the cube. 6/6 flyer that draws 5 cards is a solid rate for a 5 drop to say the least.
Grixis mid-control - Cantrips, some broken interaction spells for cheap, some it on sticks like Sea Gate Stormcaller. Often splashes a 4th color.
3-4 color goodstuff - most decks won't really fall into some special theme or archetype. Just play good cards and have fun :D

However, if you do like building around stuff...

Johnny stuff:

Jace, Wielder of Mysteries shenanigans. Jam it in a grindy sultai deck with a bunch of mill cantrips and recur it for the win. Also a solid control wincon.

Winota, Joiner of Forces. Can be used as a zoo top end, but is kind of a deck in itself - play humans and nonhumans, with a slight emphasis on big humans like Ghired, Conclave Exile and Saskia the Unyielding. Usually in base Naya colors.

Blink, also known as blonk. It boils down to Ephemerate + good, cheap card that incidentally have etb value, but it's especially spicy with stuff like Spellseeker and Palace Jailer. Also got Restoration Angel and Flickerwisp as backup blonkers.

Stoneblade! The support is 3 Stoneforge Mystic. Can be jammed into basically any white creature shell, but there's a few cards that like having multiple stoneforges, like Toski, Bearer of Secrets and Kaldra Compleat.

Collected Company. Play a bunch of 3 drops, play a flash divination for -2 mana that digs through your deck. Pretty deece.

Things to keep in mind when drafting:

• Draft is 4x13
• There is tons of fixing in this environment. Expect to be 3 colors as a baseline, and in some cases 4 or even 5 colors.
• Things happen quite fast in this environment. Be prepared to play things even turn 1, even if it's just a cantrip or holding up removal.
• The environment is heavy on removal. Expect your threats to be removed sooner or later, and come prepared with removal yourself.
• Basic lands are snow.

Core Philosophies:

• Low variance.
• Low curve to enable people to play more magic more often.
• It should be almost free to run a 3 color deck.

Come hang out on the MTG Cube Talk discord! https://discord.gg/SpUgQWa8Gn