40g stocking help

I couldn't find a specific sub forum for the type of fish i am planning on stocking, so here i am, I recently acquired a 75g from a neighbor and i plan on moving the juvie oscar i have into it, freeing up my 40g, i was thinking about doing 1 blood parrot, 3 dwarf gouramis, 1 bristle nose, and 15 neon tetras, anybody have any suggestions on what else i could add? I was considering a lone firemouth, would this work? Any feedback is awesome

scratch the firemouth, just realized he would eat the tetras, how would another bp sound?

i guess im gonna have to go with the cardinals then, ill put a school of neons in a 10g later on, now that the neons are out, could i put a con/firemouth in the mix?