Start with Agile and Scrum if the framework is still new
The introductory course is the right first step when roles, events, artefacts, user stories and iterative delivery are still unfamiliar.
Choose Scrum Master training for facilitation and role alignment
Once the framework makes sense, Scrum Master training is more relevant when your job is enabling a team, clarifying roles and improving how work moves through Scrum.
Choose Scrum Development for delivery mechanics
The developer-oriented course is a better fit when you care about planning, deliverables, sprint validation and how Scrum operates around product delivery.
Choose software project management for broader context
The longer software-project course makes sense when Scrum is only one part of the problem and you also need lifecycle models and project-management context.
Do not confuse course completion with role readiness
Scrum roles are practiced in teams. Course knowledge can improve vocabulary and structure, but facilitation, estimation, stakeholder work and technical delivery require experience.