In ceiling rears is surrounds can work with the right placement (and they’re used so infrequently the positioning does not detract from the sound.)
I agree you want better dispersion for your fronts, at a minimum your center channel.
Main 7.1 HT: Dali Zensor (7s, Vokal, and 1s), Emotiva E2s, HSU ULS-15 MK2, Emotiva BasX preamp/amps (MC-700, A-300, A-500)
Kid’s 5.1 HT: Dali Oberon (5s, Vokal), RSL C34Es, HSU VTF-2 MK5, Denon X2400H
7-Zone CCA/Spotify WHA: Paradigm (E-80Rs x6, P-80SM), Def Tech AW6500s, Polk MC-80, Emotiva BasX amps (A-700, A-500), FiiO D3 DACs