I think the reference is to coco fiber bedding like bed-a-beast not coco panels.
Not bromeliads and most orchids, try and stay away from epiphytes (they like a lot of air around the roots). Coca fiber substrates (except for the fiber mats) tend to hold a lot of water when used as a substrate by themselves so I'd say anything that likes wet roots, like a lot of vining plants. Spaths/peace lilies, syngoniums, pothos, most of the vining philodendrons would all work.
I'd recomend doing a planting mixture rather than just the coco fiber as the planting mixes allow you to have a greater range of plants, including those who aren't into having constantly soggy roots.