Not sure I can give you 5 but I'll give it a go.
Clarke Schmidt - RHP - South Carolina
Why you should care: Probably would be a top 10 pick maybe top 5 if he didn't have TJS. He's basically your upside play on a starter who got hurt. MLB.com has his pitches as 60 4 seam, 55 slider, 55 curve 50 change up and 50 command. That's not quite "amazing" stuff but to give you an idea of how pitches rate, De La Cruz is 60/60 on his fastball/curve and 55 on his change up with 55 control. Cease is 70/60 45 and 45 respectively. Clifton is 60/55 50 and 45. So his stuff is basically between De La Cruz and Clifton and I would argue having a 4th pitch makes his stuff play better than a 3 pitch guy.
Sam Carlson - RHP - HS
Why you should care: He's one of the better high school arms. If you don't count the first 2 guys who are kinda 2 way potential as RHP/SS and LHP/1B, there's only 3 high schools MLB.com has ahead of him. They have him #15 overall. If he falls it's likely a money issue. He has similar stuff to Schmidt but he's a little bigger and might fill in more but you're talking high school arms being a risk of injury.
Tanner Houck - RHP - Mizzou
Why you should care: He's a bigger guy than Schmidt with a better fastball. His secondary pitches aren't as developed.
Those 3 would be the guys i'd look at being "fortunate" for the cubs to have a shot at. The draft's pretty fluid once you get around #20 because some teams are going to draft objectively worse players to save money for later in the draft where as with 2 highish picks the cubs have some extra money to play with.
Keston Hiura - 2B/OF - UC Irvine
Why you should care: top college bat with a really high quality hit tool. Honestly I'd rather see them go pitching but he's the type of college bat the cubs have drafted.
Nick Allen - SS - HS
Why you should care: Good hit tool and really fluid defensively. He's tiny so he's drawn Altuve/Pedroia comps. Basically your high average low power middle infielder though as mentioned he should stick at SS which is a plus
Quentin Holmes - OF - HS
Why you should care: 80 grade speed and he's 17. Typically speaking 17 year olds drafted high tend to perform better. Should be a decent CF prospect.
Overall, the hitters in this class don't seem amazing. There's quite a bit of pitching depth though.