你可以这样做：

package main

import (
    "fmt"
)

type Something struct {
    Prop  string
    value int
}

func main() {
    somethings := []Something{
        {Prop: "something", value: 2},
        {Prop: "something_else", value: 5},
        {Prop: "bla", value: 3},
    }

    maxObj := somethings[0]

    for _, something := range somethings {
        if something.value > maxObj.value {
            maxObj = something
        }
    }

    fmt.Println(maxObj)
}

没有神奇的方法/库