I'll be answering all these asks together because they are related in a way!
Extras (found at the hardcover of released BSD volumes): 1 | 2 | 3 | 4 | 5 | 6 | 7 | 8 | 9 | 10 | 11 | 12
The extras that have been popping up lately (Chuuya with Q, Atsushi and Akutagawa grocery shopping, etc) were from the BD extras. As expected, since these were bundled with BDs which is on the pricier side of things, there aren't many people who can share their scans, and the ones that are up online are the Cn scans from Bravely Horizon. That being said, since I don't have explicit permission to post these scans, all I can do is provide a link. The translation and scanlation for these extras are scattered here and there; these were the ones I found (2) (5), although I do remember also coming across translations for BDs 7 & 8 either here or over at twitter.
Speaking of which, @nyaasumog kindly took pictures of the extras and posted them on their twitter: 9 | 10 | 11
As for the drama extras, I can only think of the drama tracks from the character CDs? There isn't much out there, but these ones are from the Port Mafia side: 1 | 2
I can recall someone translating some of the tracks containing the members of the Armed Detective Agency, but somehow I can't find it anymore? Anyway, you can also check out translation for BSD's Original Drama CD "Somewhat Extraordinary Days" and "Welcome to Onsen! (Armed Detective Agency Side)" here.
