When you want to raise a topic for discussion, there are a number of different phrases you can use instead of simply saying "I'd like to bring up a matter for discussion". Some alternatives include "I'd like to raise a point", "I have an issue to discuss", "I'd like to suggest a topic for debate", "Can we talk about something?", "I'd like to put forth an idea to discuss" and "I'd like to broach a subject". Using different phrases can make discussions more interesting and engaging, and can help to avoid repetition in language.