Dj it when it comes to LEDs you are going to get 10,000 replies that are all personal opinions. Here are some good questions to ask yourself
1. How much do you want to spend?
2. Do you want the lighting controllable/dimmable?
3. Do you want full spectrum or normal blue/white?
4. Could you do a DIY fixture
5. Are you looking to grow all coral types?
These are all good questions you need to ask yourself. People are gonna say go Radion they are the best, Some will say go the cheap chineese fixtures, or you could go in the middle. Its really what do YOU want to spend on them. Also consider any future upgrades you might do such as tanks and such. In My opinon here is what I think is top in each class price wise
High End: Ecotech Radion Pro
Middle: Maxspect Razor 160 Watt
Lower end: Rapid LEDs pre built fixtures, Taotronics
Its really what do you want out of your leds. Do research and you have started right by coming here and asking because you fill find alot of valuable information on LEDs here.