I had a beautiful long post written up to reply to this, and then they ran an upgrade on the website here are some parts that I remember:
Currently I have zero tanks set up (two in progress), and when I last kept fish I lived in a different state so no help there. however, fish that I considered that work with my hardness parameters (a bit different than yours, so some of these fish may not make your list): guppies, mollies, platies, swordtails, corydoras sterbai, blood parrot cichlids, firemouth cichlid, panda garras, rainbow fish (all the different kinds, the laser ones and turqoise ones especially looked cool in my opinion), black skirt tetras, black phantom tetras, bloodfin tetras, tiger barbs, odessa barbs, ummm.... I'm sure there's more that I'm forgetting now Note, this list is made up of fish that I was/am interested in, it's not exhaustive for hard-ish water fish.
check out this video, it might be motivational:
Currently I have zero tanks set up (two in progress), and when I last kept fish I lived in a different state so no help there. however, fish that I considered that work with my hardness parameters (a bit different than yours, so some of these fish may not make your list): guppies, mollies, platies, swordtails, corydoras sterbai, blood parrot cichlids, firemouth cichlid, panda garras, rainbow fish (all the different kinds, the laser ones and turqoise ones especially looked cool in my opinion), black skirt tetras, black phantom tetras, bloodfin tetras, tiger barbs, odessa barbs, ummm.... I'm sure there's more that I'm forgetting now Note, this list is made up of fish that I was/am interested in, it's not exhaustive for hard-ish water fish.
check out this video, it might be motivational: