Dim Plage As Range, Cell As Range
Set Plage = Range("E2:E" & Range("E2").End(xlDown).Row)
For k = 0 To UBound(variante)
Set Cell = Plage.Find(variante(k), , LookIn:=xlValues, LookAt:=xlWhole)
If Not Cell Is Nothing Then
Range("C" & Cell.Row).Value = k
End If
Next k