Avoid LEDs for attracting baitfish thy work so so. You need"grow lights" like metal halide...Raab Floodzilla 400W or big Phoenix 1500W. Be careful how much weight you put up and how high depending on the size of your boat it will effect the motion. I have LED worklights from Rigid Industries and they are very high quality. You can also look at Magnalight, very high quality too.
Google up. Strobes and more. I have them on my boat And they are brite as hell. Cheap too. 65$$ for 1500 lumans. Thats twice as brite as the old 55 watt deck lights. If you want to spend more money. They have. 6000 lumans for 250$$. Check them out