Ive kept them 3 times and currently I have some Blue Neon Chiwinidi. I only have 1 female now but the male and her pair off, she's yet to hold full term yet.
The "Hai Reef" variant used to be pretty popular in the hobby, then the "Undu Reef" became the hit, which is a little more purple looking blue. To be honest you cant really tell much difference between the 3 except small changes. But those are the 3 locations they are typically collected/imported.
The chiwindi has always been my favorite as their blues get almost a sky blue color, however it seems to be taking forever for my male to get his blues on his fins.
Anyhow. You'd be safe to keep them with almost anything hap/peacock related. They're pretty docile.