How can I help my child in a loud environment?

Hi all! So we are still undergoing the investigation for my baby boy’s left ear hearing loss (can’t measure how much loss at the moment since it’s ANSD, MRI is on the way in 2 weeks) and I am doing all the researches to calm me down a bit.

I know one of the difficulties arising with unilateral hearing loss is having stressful time in a noisy environment. But obviously I would love to bring him around kids-friendly places like carnival, zoo, aquarium, theme parks etc.

Will he mostly likely have a trouble? If so, is there anyway I can help him having less stress and enjoy those moments? I would love to get some advices or experiences regarding this one. Thank you!