a lot of it is subjective but a dragon soul is usually purple with green tips like this
a hellfire is more gold with whiteish tips (sometimes green highlights/a green mouth)
NY Knicks is very similar to a hellfire except they tend to be a bit more orange then yellow and have a green mouth and blue tips
indo golds are very yellow with either blue/purple tips.
24k Golds (generally Aussie) are very deep yellow/orange or yellow/green but are super bright and have almost no purple running through them with not quite as long tentacles with blue or purple tips
but tbh most of the naming is just BS to get more money for it. Really comes down to whatever you think looks unique and cool and fits your budget.
In terms of other ones that are unique, I just got this one (will be here tomorrow so I will update with my actual picture) that seemed unique with the blue colors I haven't really seen to much of.