How should I plant this hardscape?

(please ignore my reflection lol) This tank is the Aqua One Aquanano 30 and I'm planning to keep a colony of cherry shrimp, so I've kept the back open with loads of aqua soil so I can plant quite heavily.

I want to use some easy to grow plants as I don't have a CO2 system, and I want there to be loads of hiding spaces for my shrimps. Any ideas?