Help! Galaxy s8 needs to be replaced

Oct 21, 2021
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Hi. I'm new but have been a "Tom's Guide" reader for years.
I am now desperately researching new phones as my S8 is quickly dying. I'm not tech savvy and all the reviews with the technical specs are very confusing.
First, I use Straight Talk for service. I prefer unlocked phones over Straight Talk but I would consider that options as well. Having a large amount of storage or ability to add storage is important to me. Also extremely important is the camera. I take a lot of photos and utilizing the front camera, for Snaps with my teens and the back for taking pictures of my family as well as selling clothing locally. I do take some outdoor scenery photos as well.
I'm most comfortable using Android but would not be against Apple although the storage issue is what causes me to hesitate.
Ideally I would like to stay around 600 to 700 range.
Thank you for any help and suggestions you can give me.