hey @MattJan a good place to start would be by looking at models fine-tuned on the samsum dataset (dialogues between two people + their summary): Hugging Face – The AI community building the future. 12
if you want to fine-tune your own model, a good start would be to use a pegasus model that has already be trained for summarisation, e.g. google/pegasus-cnn_dailymail · Hugging Face 13