Some recommendations, along with a few off-the-top-off my head prices in some cases.
Total wins per player.
Gigabet show/no show (2-1 no)
Player A more wins than Player B
Gigabet/Irieguy/Daliman/Imsolucky/Mcpherzen vs field to win or total wins. (Even Money)
Will the championship match take 1 or 2 games? (-110 1 game/+110 2 games)
$500 or $200 player winning it all. (-250 $500 player)
Winner coming from loser's bracket. (-240)
Winner going undefeated
-110)