In the context of a video lecture/vodcast/... how to translate "I would like to talk to you about ..."
I think the audience you would target is important.

To the people from mainland, I suggest putting this like "在這裡，我要和大家聊一下（關於）..." or "在這裡，我們要聊的話題是...". Using 我們 is a good choice because the audience may feel you were with them. 大家 and 聊 can pull you closer to your audience on the topic, as if you were chatting, instead of teaching. If you want to talk about 牛肉麵, you could say "在這裡，我要和大家聊的話題是'牛肉麵'" or "在這裡，我們要聊的話題是'牛肉麵'" .