There are loads you could add to your list like filefish, shrimpfish, puffers, frogfish, anglers etc but I would very much warn against one on your list the brotulid. I've actually kept everything on your list (ran a shop) and warn against the brotulid only because you will add it and never see it again. They are completely cryptic and you read about folks who add them and assume they died only o break down their tank years later and find them. It a similar story with the amazing flaming shrimp goby. They are cool and people are always excited to get one but ten rarely see it again.