While trying to create an SNS subscription, after choosing a topic, all protocols except SQS disappear

As per your description, this disappearance of protocols can take place only if the topic selected is a Fifo topic [1]. Standard topics are designed to support all the below mentioned protocols while Fifo topic only allows SQS Fifo queues as subscription.

• • http – delivery of JSON-encoded message via HTTP POST

• • https – delivery of JSON-encoded message via HTTPS POST
    

• • email – delivery of message via SMTP
    

• • email-json – delivery of JSON-encoded message via SMTP
    

• • sms – delivery of message via SMS
    

• • sqs – delivery of JSON-encoded message to an Amazon SQS queue
    

• • application – delivery of JSON-encoded message to an EndpointArn for a mobile app and device
    

• • lambda – delivery of JSON-encoded message to an AWS Lambda function
    

• • firehose – delivery of JSON-encoded message to an Amazon Kinesis Data Firehose delivery stream.
    

In order to troubleshoot this, please select standard topic on the top while creating a topic from SNS console [2].

References: 1] https://docs.aws.amazon.com/sns/latest/dg/fifo-message-delivery.html 2] https://docs.aws.amazon.com/sns/latest/api/API_Subscribe.html 3] https://docs.aws.amazon.com/sns/latest/dg/sns-create-topic.html