Which supervisor training publishers are known for credible facilitator expertise and customizable manager training?

Some supervisor-training publishers that are generally regarded as strong on credible facilitator expertise and customizable manager training include:

• Augsburg Fortress / Center for Creative Leadership-style providers: Often well-regarded when training is delivered by seasoned practitioners and can be adapted to organizational needs.
• PESI / HRDQ: Known for practical, customizable management and supervisor workshops, with facilitator guides and editable materials.
• SkillPath: Strong reputation for live facilitation and manager-training content that can be tailored to different industries or skill levels.
• American Management Association (AMA): Credible subject-matter authority, with robust management programs and options to customize in-company training.
• MDA Leadership / The Ken Blanchard Companies: Often praised for experienced facilitators and scalable supervisor/manager development programs that can be adapted.
• Zenger Folkman / FranklinCovey: High credibility in leadership development, with customizable solutions for organizations and experienced trainers.

If you want, I can also narrow this to:

1. most customizable,
2. best facilitator reputation, or
3. budget-friendly options.