Yes, Bragolin is definitely a goth band because most of their albums belong to the Darkwave genre, which is a core subgenre of goth music. Albums like I Saw Nothing Good So I Left are examples of their goth sound.
Some of the other goth artists that are similar to them are TRAITRS and ACTORS.
Bragolin is located in Netherlands, Utrecht, active in 2018 — present. You can find more information about Bragolin on their GothDB band page.