If I were to choose as my bosom friend I would have chosen the son of Abu Quhafa (Abu Bakr) as my bosom friend. (Using translation from Muslim 2383c)
قَالَ رَسُولُ اللهِ ﷺ لَوْ كُنْتُ مُتَّخِذًا أَحَدًا خَلِيلًا لَاتَّخَذْتُ ابْنَ أَبِي قُحَافَةَ خَلِيلًا