Which Plugins Should I Purchase? Options

[leeskeys]

I'm pretty new to recording and mixing. I'm using a Presonus board which my band has recently purchased to run sound and record sessions. I'm learning to user Reaper to mix and publish our songs. I'm the keyboard player in a 5 member classic rock band. Anyway, I recently purchased Nomad Magnetic II, Cosmos and Echo because the price was phenomenally cheap and the proceeds are going to a very worthy cause and because these products looked like something which would be useful. I was wondering if anyone might suggest one or two other Nomad products which I might want to purchase while the sale prices are still running, considering what I've already purchased. Don't want to duplicate anything. Thanks!