Do you know this dog? My own dog's long lost sibling!

Not actually a missing pet, per se, but needed flair to post. Longshot but doggy DNA test has identified Sonic as a sibling of my own dog (in the second photo). Sonic's profile lists Boston as home, but that's all I have to go on. Tried messaging the owner thru the app without success. I'd love to connect with the owner to share photo/video and maybe someday even arrange a meeting (Stevie Ray is a Colorado dog so it'd be a thing, geographically). If Sonic inherited even a fraction of my dog's charisma, someone here should recognize him/her. Thanks!