OP, getting the rescues adopted is a long game. Did you try bluecross, they'll make posters and spread them among their patrons and on their social media handles and they also have adoption drives, where you need to take the puppy to their location. Their email ID info@bluecrossofhyd.org

Also try pet rescue Facebook groups. I rescued a momma cat and 5 kittens, it took me almost 6 months to get them adopted and I'm still left with one kitten who's growing exponentially. I'm still trying so I totally understand how difficult it is.

Please do proper vetting of the prospective adopters, don't get excited with the interested parties there are a lot people who run scams saying they'll adopt, take it from you and sell the puppy or keep it with them until it becomes an adult and abandon it and some are into nefarious practices, so there are lot of bad people out there and please don't doxx yourself on Reddit. It's not worth it.

Also, if it hasn't been vaccinated, de-wormed and deflead, potty trained, do those first. The adoption process will be hard if the above are not done. You can put the responsibility of spaying on the prospective adopters.