So let me start by saying I like the idea of the omnibus but not the overly huge book where the spines break, can’t read easily, heavy, etc.
However, I think the Starman Omnibus design is as perfect. If need be it could be a bit larger but not what we know as most omnibus.
As for project, while I like these Crisis on Infinite Earths companions. I would like to have seen them all put out in reading order with reference of which COIE issues to read.
Also, would love to see collections of things like the Hourman or Red Robin series, the first Blue Beetle and Booster Gold series. Most of which are like Two years worth.
An omnibus of the Batman Family series would be cool too.