Most corals seem to do well with 200-400 PAR or around 15000-20000 lux.
Do you have any lighting preferences to begin with?
There are so many good options these days you really need someplace to start with recommendations.
Kessil, Current USA, AI, etc...
Remember that there's a difference between spotlights (Kessil, AI, ...) and floodlights (Current USA, ...). Remembering that during the selection process seems like it would eliminate a lot of dissatisfied lighting customers.
Some folks like a more dramatic, dynamic look with shadows and wave lines, shimmer, et al like you get with spotlights. Metal halide lights were/are also spotlights.
Some folks like a more homogenous look where there's a lack of shadows or dynamism, like you get with floodlights. T5's were/are also floodlights.
Neither is better per se.
Both are natural for coral, depending on the environment you're trying to recreate.
Oh, I should also add that there are A LOT of folks that are A LOT less picky about lights who are fine with both "looks" and still grow awesome corals.
So if you feel indifferent about it – that's OK too.
