Since this will be your first experience with a bird, I would suggest looking into parakeet species or cockatiels. English budgies, Alexandrines and Quakers are larger species of keets', and from what I hear, very sweet and (relatively) easy first birds. Cockatiels are also good first birds, they are absolutely adorable with their little crests and (in some species) little yellow cheeks, but don't pack the noise power of a larger bird. Conures are notorious noisy for their size, and if it's something that really concerns you, they may not be a good fit for you as a species.
If you are interested in adopting a bird or wouldn't mind an older bird, I strongly suggest you look into local avian shelters. Lots of birds from the tiniest parrolettes to the largest macaws are in shelters just waiting to find a loving, forever home. Adopting a bird can be a very rewarding experience, and you will get the support of the shelter to help you and your new buddy adjust to a great life together.