The best Podcast on communication

I wish I can listen to more and of this Podcast, i don’t know how many times I listened to all Episodes. As a Trilingual speaker, I tend to doubt myself when I speak in front of great communicators and Well spoken English speakers etc.. I wish I had a professor or a mentor to help me have better confidence when I speak. Please share more and more Podcasts on Speaking smart... I need it to advance in my career.