You need to identify a venue and a date. In identifying a venue, make sure it has the capacity that allows you to generate enough ticket sales to pay your bills and make money. Then, identify a date that makes sense to draw people to the event. Once you have that, you either identify a matchmaker who can assist you in making the matches or do it yourself. When you have done that, then you need to sit down and a do a very, and I emphasize VERY, realistic budget being high on expenses and low in revenue.
Most boxing promotions lose money the first couple of shows.
And a promoter or wannabe promoter needs to decide whether he can invest 2 or 3 shows of losses to start building a base of fans. I can count on one hand, or a couple of fingers, boxing promoters who have been successful from the word go, from the first show. And that's Don Fraser and Roy Englebrecht. And that's because we were the first at doing boxing at certain venues. People have tried to do that in other places and have not been very successful.