To learn Deep Research in 2026, follow this order: start with a beginner crash course, then a full course, then advanced deep dives. This roadmap sequences 17 of the best free YouTube videos — beginning with "Create an Open Deep Research Multi-Agent in Python (Step by Step)" by Alejandro AO (10,483 views).

Step 1

Start Here

Beginner-friendly Deep Research intros and crash courses

Step 2

Core Skills

Full courses and comprehensive Deep Research tutorials

Step 3

Advanced & Deep Dives

Go deeper into Deep Research internals and real-world use

Step 4

Stay Current

The freshest Deep Research videos from the last 6 months