Look for courses that combine hands-on labs, real-world projects, and clear exercises on safety and best practices rather than just syntax. Platforms offering interactive terminals, guided labs, and community Q&A are especially helpful—seek ones that teach shellcheck, testing, and integration with CI. Free resources (official Bash manual, community tutorials) plus paid bootcamps that include mentor feedback are a strong mix. When choosing, prefer up-to-date syllabi that cover modern workflows like containerized testing and secure secret handling. In the forum: ask peers which specific modules helped them (e.g., error handling, testing, or production hardening) so you can pick courses matching your career goals.