This is a huge open end question, cuz everyone will have a different opinion.
T5 / MH / LEDS/ combo's..
Your best bet is to just do a lot of research, check out all the web sites, you tube vids, check out reviews on marine supply outlets online.
Most importantly check out your WALLET. That in it self will tell you what you can and can not afford.
Set a budget, then look at what quality of lights you can get for that budget.
Many things to consider on lights, par rating, heat, cost of bulb replacement, energy consumption, controll ability, size, placement, access on tank.
You can see what I mean.
We went with ACAN LED panels and LED strips. Cost $2200.00 in lighting only.
Others will chime in on there suggestions............