German Speaking Partner, Pronunciation Feedback

I am working on sharpening my spoken German and need a native or near-native speaker to correct me in real time. My main goal is to master the trickier vowel and consonant sounds that don't exist in my native language. Either online video calls or in-person lessons, whichever you offer. Lesson frequency about twice a month. During each session we may hold free conversation, or practise scenarios, or focus on a word that I have trouble with. I expect you to give feedback on clarity of my speech and my pronounciation. Please mention any preferance or restrictions for session times and duration. We can determine a time that works for us both. Fee open to negotiation. A teaching background is helpful but not essential; what matters most is patience, a keen ear, and the ability to explain mouth and tongue placement to a non-native speaker.