Getting data out of Salesforce in near realtime

Check this recording to learn about Pros and Cons of all below :-
On Platform Options
-Outbound Messaging
-Callouts
-Salesforce Connect (External Data Source)
Off Platform Options
-Heroku Connect
-Streaming API
-Change Data Capture
-Polling (REST/SOAP)
0:00 Introduction
0:45 Overview
3:35 Outbound Messaging
7:26 Callouts
10:49 Salesforce Connect
13:53 Heroku Connect
15:56 Streaming API
19:21 Change Data Capture
22:03 Polling (REST / SOAP)
25:17 But what about...?