treequell vky17 Thank you both for the suggestions.
Signal/Molly - I didn't think of this but good idea. The limitation is that I didn't see a way to add shapes such as boxes or circles, only a draw feature. This draw feature is also in the Simple Gallery app already which would limit a step as compared to the Signal method.
Simple Gallery - This gallery has a draw tool, but also no shape options. This is my current photo Gallery as well.
Google Photo - This may be a viable option but I am not willing to use it. I already installed Google Camera, Google Maps and Gboard. I don't want a GrapheneOS phone with all google apps because at a certain point this defeats my purpose. I appreciate the suggestion though.
Does anyone else have any recommendations for my very niche request?