Peter's primacy in the early Church — the patristic evidence

Matthew 16:18-19 is the starting point, but the patristic evidence is what clinches it for me. Clement of Rome (96 AD) intervening in Corinth's affairs without being asked — uniquely, among all the sees. Ignatius of Antioch addressing the Roman church as presiding "over the whole assembly of love." Irenaeus appealing to Rome as the standard of orthodoxy. This is not later Romanist projection onto neutral texts. The evidence for Roman primacy is earlier and more substantial than most Protestants realise. What sources do you lean on?