I've never seen Babylon 5. (it was written by J. Michael Straczynski though so it's probably good)I might watch Battle Star next. I remember all of these shows when they came on in the 90's but I never watched them. Yeah, I guess networks are only into high concept sci fi (Lost, Under the Dome, Almost Human), and aren't into the standard stuff like Star Trek.
You should give it another try.
You like Kitana and Sindel so much, and you loved Andrea in Walking Dead. I feel like you would dig Aeryn Sun, Zhaan, Chiana, and Mele-on Grayza. Show has good drama, and funny bits.
You should check it out on Amazon Prime.