It sounds like the original poster is asking about cheap online IB leadership or educator courses that can help them move into better international schools. They also mention wanting to work in more relaxed American or Canadian environments, but their current UK-based qualifications have not given them many opportunities, especially outside A Level and IGCSE schools.
From my experience, improving international job chances is not only about leadership training but also about having strong global qualifications. For example, many teachers planning to work abroad first Pay for the TOEFL exam https://www.theresearchguardian.com/pay ... oefl-exam/ to show strong English communication skills. It’s a simple step, but it often helps applicants become more competitive for schools worldwide, especially in North America and international IB networks.