I think an English budgie would be awesome, I am also loving our Linnie so far
my only complaint is she has messy poops
she holds them (which I guess a lot of Linnies do) so they are like bombs when they come out, it's pretty gross. Otherwise she is wonderful. I would also recommend a Rosey Bourke, they are not easy to find, and of course I will always have a place for them in my heart because of Little Pink, I would love to get another one some day and really experience them
but they are known to be very calm, mellow birds and are commonly kept with cockatiels in aviaries.