startup event

Good all the time of day.
I wanted to create a survey, but I realized that I would not be able to give here with fixed-choice answers.
What do you think, good fellows, in what style should an event dedicated to start-ups be performed? The main audience - startups, some journalists, some investors. Here is a cocktail.)
All suggestions for style, format, etc. are accepted. events where each of you would really be interested.)