I haven't read Jay Allen's other books. I do have the Crimson marines, and Gennaro dawn. Haven't read t hem yet. I did like the first blood on the stars book. I enjoyed it. Another fun scifi series is Iron hand. I read the omnibus and I really like it. Jon mollison is a prolific writer and has other genres that you might prefer.
Another one is Fallen empire. It's another #starwarsnotstarwars. It's less dark than galaxy's edge and I found it enjoyable. She also has a steampunk that's more adventure and less hobble skirt women with grease and wrenches ™

xavier