Funny, I have always considered rhode islands to be a little snarky.
Definitely the sweetest chickens you can get your hands on are australorps and orpingtons. These breeds are not only extremely hand-friendly but also lay a good number of brown eggs. They’re very hardy and a little heavier than some other breeds so if you choose to keep them as pets they will be healthier as they age, and if you choose to send them to the freezer instead they won’t be a total disappointment in size. Orpingtons do have a tendency to put on fat, though, so watch their diets.
Other good options are plymouth rocks (especially Barred rocks), easter eggers (which are really a mixed breed) and silkies. Plymouth rocks are robust heritage breed birds that are a little less freindly (on average) than the above breeds but tend to be a little more healthy. Easter eggers are an exciting grab bag of colors and shapes, with muffs and beards, they tend to be goofy and also usually lay blue/green eggs - a favorite for kids. Silkies are tender little house-chickens that love to cuddle and brood chicks but can’t handle a cold rain and lay very few small eggs.
But the best chicken of all is going to be then hen you hand-raise yourself at chest-level. While I would suggest never raising a rooster this way, because a rooster needs to respect your space or they can become aggressive, raising chicks at chest level instead of on the floor makes them very friendly and fearless. They no longer see you as a threat swooping down from above but rather something to interact with safely. This lets them be very bold and they will learn to run right up to you for snacks extremely fast. They may even let you pet them over time, or sleep on you, etc.