VBA - Trying to use For / Next Loop macro to go to next dynamic cell range in column 'C'

At work. But I wrote something that is going to give you all the combinations. You can treat it as a template

Sub Test()
Dim i As Long, j As Long, LRi As Long, LRj As Long, x As Long

LRi = Cells(Rows.Count, 1).End(xlUp).Row
LRj = Cells(Rows.Count, 2).End(xlUp).Row
x = 2

For i = 2 To LRi
    For j = 2 To LRj
        Cells(x, 4) = Cells(i, 1)
        Cells(x, 5) = Cells(j, 2)
        x = x + 1
    Next j
Next i
    
End Sub