No one alive today is entitled to call themselves an Apostle. If that were the case, then surely St. Clement, St. Ignatius of Antioch, St. Justin Martyr, St. Polycarp of Smyrna, St. Ireaneus of Lyons, St. Victor of Rome, St. Cyprian of Carthage, St. Gregory the Wonderworker, St. Gregory the Illuminator, St. Nino the Enlightener of the Georgians, St. Athanasius of Alexandria, St. Basil the Great, St. Gregory the Theologian, St. John Chrysostom, St. Cyril the Great, St. Cyril and Methodius, St. Herman of Alaska and others would be venerated as Apostles. As it happens, some, such as St. Nino, are venerated as Equal to the Apostles, and some such as St. Athanasius, are venerated as Apostolic.
However, there are bishops in Apostolic succession, both according to the definition of succession of St. Cyprian of Carthage which requires doctrinal orthodoxy for apostolic succession to be transmitted, and the definition of St. Augustine of Hippo, which does not.
Obviously some bishops are more deserving of the episcopate than others.
Additionally there are evangelists who have received a blessing from the Orthodox Church to preach, such as Billy Graham, memory eternal, who assisted the Russian Orthodox Church, the Georgian Orthodox Church, the Armenian Apostolic Church, and the other canonical Orthodox churches in the former Union of Soviet Socialist Republics by preaching there, with the blessing of the Patriarchate of Moscow, for during the Soviet Union, the churches therein were prohibited from catechizing the youth, preaching became dangerous, and many parishes were closed so accessing church became very difficult, and in some cities there was no church at all*.
Thus, with the blessing of the Russian Orthodox Church, Billy Graham did a great service for the Christians of the former Soviet Union, by preaching throughout; his popularity was such that the Soviets dared not interfere without embarrassing themselves on the world stage.
But Billy Graham did not claim the title of Apostle; this title has only been used to refer to the Twelve (including St. Matthias, ordained to replace Judas Iscariot), the Seventy and St. Paul. Self-appointed Apostles are always a red flag; no traditional denomination has allowed anyone to claim such a title.
*for example, in Pripyat, although there was an Orthodox church nearby in Chernobyl, which survived the disaster, has miraculously low radiation levels and is still open for liturgy, the only operational church in the Exclusion Zone.