Here are some items that Tank likes/we've talked about that I've recommended for you. Hopefully having them all in one spot will make it easier for you!
*I am affiliated with Amazon, so if you do purchase anything through these links I will get a percentage. Thank you!
Continue to work on your leave it, loose leash walking, and being a creeper. Sit in parking lots (ideally a pet store) and let Tank watch dogs/people go by. Reward for being calm and anytime he looks at you without being asked to.
Remember a reward can be play, so keep a toy or two with you!