I've been hearing some good things about these. I appreciate the wide spectrum available and the low cost. I think 2 of these would work. They can be mounted on the tank but I would not recommend that on such a shallow tank.
https://www.quantareef.com/shop
Noopsyche is another budget friendly option. Two of the k7 v3's would work.
https://noopsycheusa.com/collections/noopsyche-lighting
If you would like one that mounts to the tank, I'd recommend two kessil a160we's because they have a very wide spread without having to move the light far from the corals.
In my experience, the best lights for SPS frags are ones that minimize shadowing, have a wide spectrum (I like to see wide blue/purple ish, green, and some 660nm red if possible), and avoids serious hotspot issues. I hypothesize the wide spectrum allows the corals to tolerate higher par levels without their growth slowing down.