There are several cruise lines that are great for families, according to various sources. Here are some of the best options:

1. Disney Cruise Line: This is often considered the top choice for families due to its focus on childrens entertainment and activities. It offers a variety of short-cruise destinations, affordable-yet-spacious inside cabins, and lots of onboard attractions and restaurants included in the fares.

2. Royal Caribbean International: This cruise line is known for its large ships with plenty of activities for all ages, including water parks, rock-climbing walls, and ice-skating rinks. It also offers late-night babysitting and all-ages entertainment.

3. Carnival Cruise Line: Carnival is another popular choice for families, with a variety of onboard activities and entertainment options. It offers a range of shore excursions, dining options, and onboard amenities and activities.

4. MSC Cruises: MSC Cruises has become one of the best family cruise lines, with exclusive clubs and childcare for children from infancy to age 12, plus teen spaces for those up to 17 years old aboard all MSC ships. It also has a partnership with Lego, which is a hit with kids.

5. Norwegian Cruise Line: Norwegian Cruise Line is all about giving cruisers options to create different versions of the perfect cruise vacation, all within the same ship. It offers flexibility and choice, making it one of the best.

6. Celebrity Cruises: Celebrity Ascent is the best cruise for families with teenagers, according to Cruise Critic. It offers a variety of activities for teens, including a video arcade, teen disco, and sports deck.

When choosing a cruise line for families, its important to consider the ages of your children, your budget, and your preferences for onboard activities and entertainment.