Check out the regatta calendar. Click here to see the races we recommend. See if the race is appropriate for your level of experience. Some races are highly competitive and are better suited for advanced rowers. Some races are on tight, curling courses and require skills crews and coxes.
Many races are great for all levels of rowers.
If you are unsure about a race, just ask. Put together the people who want to race with. For all but the most competitive races, you can race with whomever you want. You might want to consider getting a coach to help you. A list of coaches is available here .