Parrotlets. You just have to research them! They are tiny parrots smaller than budgies, but stouter and they have the personality of a macaw.
I used to raise Cockatiels and they are fantastic birds! I currently have two Linnies and i have to say you can't go wrong with them (of course there is always that exception) they are wonderful birds. They are labeled Parakeet, but their actions and behaviors are more like a parrot. They are very sweet and aren't loud.
Just a suggestion..if you have only owned Budgies and don't have experience with larger species..I would move up gradually. I think any of the birds on your list would be a good next bird with the exception of the Red Bellied. Not that they aren't great birds, but I know if I was only used to Budgies I wouldn't want to take on a Red Bellied until I had more experience with other species as they require a lot more and the cost to keep them happy is much more. They need a lot of attention and mind stimulation...they have to be kept busy for their mental well being. They are great birds, but I would hold off for future. As I said..just a suggestion.
I have cockatiels and a Green Cheek Conure. I love both. Cockatiels tend to be pretty easy going. My conure is very active and outgoing. She is more beaky than my other birds, but very sweet and fun. I also have a Rosy Bourke that is a wonderful little bird. Quiet, but outgoing and friendly. Loves to ride on my shoulder. Have you considered a Lineolated Parakeet?Hi!! I joined here because i want a new bird. i have budgies now. here are some types i am considering
~ red bellied parrot
do you have any info about these types?? or own them?? or is there another bird that would be better...? if so i would love to hear, lol thanks!!! lola