Last updated September 8th, 2019, to find the latest ciphers follow the nmap command below or visit https://www.ssllabs.com/ssltest/analyze.html?d=s3.amazonaws.com

TLS 1.2 (suites in server-preferred order)

TLS_ECDHE_RSA_WITH_AES_128_GCM_SHA256 (0xc02f) ECDH secp256r1 (eq. 3072 bits RSA)
TLS_ECDHE_RSA_WITH_AES_256_GCM_SHA384 (0xc030) ECDH secp256r1 (eq. 3072 bits RSA)
TLS_ECDHE_RSA_WITH_CHACHA20_POLY1305_SHA256 (0xcca8) ECDH secp256r1 (eq. 3072 bits RSA)
TLS_ECDHE_RSA_WITH_AES_128_CBC_SHA (0xc013) ECDH secp256r1 (eq. 3072 bits RSA)
TLS_ECDHE_RSA_WITH_AES_128_CBC_SHA256 (0xc027) ECDH secp256r1 (eq. 3072 bits RSA)
TLS_ECDHE_RSA_WITH_AES_256_CBC_SHA (0xc014) ECDH secp256r1 (eq. 3072 bits RSA)
TLS_ECDHE_RSA_WITH_AES_256_CBC_SHA384 (0xc028) ECDH secp256r1 (eq. 3072 bits RSA)
TLS_RSA_WITH_AES_128_GCM_SHA256 (0x9c)
TLS_RSA_WITH_AES_256_GCM_SHA384 (0x9d)
TLS_RSA_WITH_AES_128_CBC_SHA (0x2f)
TLS_RSA_WITH_AES_128_CBC_SHA256 (0x3c)
TLS_RSA_WITH_AES_256_CBC_SHA (0x35)
TLS_RSA_WITH_AES_256_CBC_SHA256 (0x3d)
TLS_RSA_WITH_3DES_EDE_CBC_SHA (0xa)

TLS 1.1 (suites in server-preferred order)

TLS_ECDHE_RSA_WITH_AES_128_CBC_SHA (0xc013) ECDH secp256r1 (eq. 3072 bits RSA) FS
TLS_ECDHE_RSA_WITH_AES_256_CBC_SHA (0xc014) ECDH secp256r1 (eq. 3072 bits RSA) FS
TLS_RSA_WITH_AES_128_CBC_SHA (0x2f)
TLS_RSA_WITH_AES_256_CBC_SHA (0x35)
TLS_RSA_WITH_3DES_EDE_CBC_SHA (0xa)

TLS 1.0 (suites in server-preferred order)

TLS_ECDHE_RSA_WITH_AES_128_CBC_SHA (0xc013) ECDH secp256r1 (eq. 3072 bits RSA)
TLS_ECDHE_RSA_WITH_AES_256_CBC_SHA (0xc014) ECDH secp256r1 (eq. 3072 bits RSA)
TLS_RSA_WITH_AES_128_CBC_SHA (0x2f)
TLS_RSA_WITH_AES_256_CBC_SHA (0x35)
TLS_RSA_WITH_3DES_EDE_CBC_SHA (0xa)

Using NMAP (You’ll need to download and install it ahead of time) you can find these TLS/SSL ciphers as well:

nmap --script ssl-enum-ciphers -p 443 s3.amazonaws.com