No Trinity or “formula” article: https://thehumanjesus.org/2022/04/05/matt-2819-is-neither-a-trinitarian-formula-nor-a-corruption/

“Baptism in the name of” article: https://thehumanjesus.org/2023/02/25/baptism-in-the-name-of/

Patristic quotes before 325AD https://rfcogstudy.blogspot.com/2021/11/matthew-2819-by-church-fathers-and.html

Eusebius quotes https://rfcogstudy.blogspot.com/2021/07/eusebius-of-caesarea-short-form-matthew.html