Kudos to you, for wanting a smaller rod. I use 5' - 6' Ultralight rods for trout. Fighting trout in the 18- 20", will make the fish feel like a steelhead. It's a lot of fun!
I too, like Okuma's. There are also some decent Shakespeare rods, and maybe some Berkley's too...just to name a few.
But more importantly, I look for a fast action tip (very flexible, with lots of motion).
Plus, I look for rod's (of any kind/size) with a minimum line guide-to length ratio of 1:1. In other words, at least one guide per foot of length. For example, at least 5 guides for a 5 foot rod; and at least 6 guides for a 6' rod. I also prefer double footed guides (two posts that attach to the rod blank). But, single footed guides are also okay for a trout rod.
And, I look for a REEL that BALANCES to the rod's weight. To test this, just attach a reel and have both sections of the rod together. Place ONE index finger under the uppermost top part of the cork handle. If it is evenly balanced, neither end of the rod will drop or lower itself. If one end drops, then your reel is either too heavy or too light.
This isn't absolutely critical when fishing for small-ish trout, panfish, etc. But, it does become a critical point when fishing for larger quarry. For example, you will feel less wrist/arm fatigue with a well-balanced rod/reel combo.
If you can; go visit a shop or two and look around at the selection. Keep these things in mind when shopping, and you should wind up quite happy with your selection.