Here are some words with similar "oo" sounds, categorized based on their pronunciation:
"oo" sound as in "moon" or "food":
* Could
* Good
* Hood
* Look
* Book
* Cook
* Foot
* Mood
* Pool
* Roof
* Snooze
* Wood
* Wool
"uh" sound as in "blood" or "flood":
* Blood
* Flood
* Mud
* Stud
* Bud
* Cud
* Scud
* Truck (sometimes)
Keep in mind that these are just examples, and the exact pronunciation of the "oo" sound can vary slightly depending on the word and regional dialect.