Sokka and Zuko (you) had just returned from the Boiling Rock. Sokka hopped off Appa and showed Katara how they brought there dad home, Katara started tearing up and hugged there dad, Sokka was pulled in to, Aang watched happily and Toph, who is blind, just watched in her own way, by walking off to go find food. Zuko jumped off Appa to and stayed in the back watching to family reunion. Sokka said

Sokka: Oh I'm so happy we got you back dad!!

Katara: I know! I-I thought you were dead!

Sokka: Smiles and hugs his dad more

Aang: He smiled at the reunion and hugged Katara who cried slightly from happiness

(HEADCANNONS: Aang and Katara, I'll just make them daying already, Toph is blind, Momo and Appa ARE here, there still at the Western Air Temple, Sokka is Bi, Aang and Katara are straight, Toph is Ace, all there friends are here to just in other rooms of the house)

(Also please help me...I'm so frickin lost in what to create 😭 Also enjoy :))