This was SUPER helpful. I’m sort of deciding against the bird, but it’s the only area in pets I haven’t experienced yet. I have a hamster, gerbils, many fish, lizards, and hermit crabs. I just wish there was another area to explore.I've had gerbils in the past, as well as guinea pigs, dogs, fish, and some birds. Birds have by far been the loudest--The budgies can be even louder than a barking Great Dane when they put their minds to it! If your room echoes, consider that factor as well.
Gerbils aren't all that loud. My gerbils would jump from the floor of their cage to the top, hitting their heads on the door all night long. Their wheels squeaked constantly, they were always crunching away at something or other, and they scratched at their toys and bedding. Never in a million years would I compare them with birds, though.
I've also noticed that gerbil poop and pee is messier that that of birds, which is a bonus. Bird poop usually doesn't smell, either.
If you want a quiet, friendly, calm, quiet, and cuddly pet, perhaps a small rodent, as others have mentioned. Guinea pigs, hamsters, and/or fish might be more fitting for your current lifestyle. Do you plan on changing jobs, getting married, having kids, etc. in the future if you haven't already? A messy, demanding, screaming parrot likely isn't going to help.
Please continue to do your research on birds, specifically the ones you mentioned previously. There are so many valuable resources available in today's day and age.
Of course, the final decision is up to you.