How to find the higher numbers in an object in JavaScript?

I want to reach the higher numbers in an object.

let object1 = {
  a: 2,
  b: 2,
  c: 0,
  d: 3,
  e: 1,
  f: 1
}
// Need to get 2,2,3 above. The first 3 highest ones.
let object2 = {
  a: 7,
  b: 15,
  c: 1,
  d: 7,
  e: 4,
  f: 3
}
// 15,7,7 above.

But it is not like return > 1 because I cannot set an exact number; the object can be

let object1 = {
  a: 1,
  b: 1,
  c: 0,
  d: 2,
  e: 0,
  f: 0
}

I need to compare every single key with others so that I can find the higher numbers(for example the first 3 highest numbers) in the object.

I have tried it like keys.reduce but I could not reach out to a good solution.