Booster Gold, Blue Devil, Bumblebee, Hawk and Dove, Red Tornado, Animal Man, and/or Firestorm.

Green Arrow hasn't had a book for two years, I think it's about time he gets a new series.

JSA. The most we've gotten in over a decade is Earth 2. I love Earth 2, but I want my classic JSA back dangit!

If I can't choose a group, then probably Steel.

@KingK211 First of all, which Trickster? Second while the Joker is a crazy lutanic, the trickster isn't. And he would barely work in a solo series. It's really hard to pull him off without including the Rogues (somehow Williamson managed to do that greatly). Axel Walker is just a teenager who found James Jesses gadgets. James Jesse is just a dude with Gadgets whose gimmick is circus stuff, just like Captain colds gimmick is to make things you know, cold.

You can’t judge something so harshly especially if it’s never been made. They always find a way to make things work

Blue Beetle (Jaime Reyes, but I wouldn't mind others).

Green Arrow

^^^I mean I would LOVE a Rogues series, but only Trickster would be weird. He works so well because he is a part of the Rogues. I see what you mean though and I would definetly give it a try. I would also LOVE a series about Captain Boomerang.

A Rogues book would be interesting. If nothing else, at least a miniseries.

I would say Deathstroke but he's getting a new one soon. So I'd say Tim Drake or Cassandra Cain.