You could look into infinite baffle subwoofers. You pay a lot to get good performance from in-wall speakers, but good performers are out there - Check out Triad's line.
I'm not sure how tight you are with space, but you could have a acoustically transparent screen as close as a foot from the wall. Speakers like the DIY Soundgroup HT-12 or HT-10 are built for just such instances.
7.4.4 Theater Room: JVC-RS500, Silver Ticket AT 2.35:1 142”, Onkyo RZ830, Anthem PVA-7, Panasonic UB420, Apple TV 4K, JBL Studio 530’s, Dual Driver VBSS
3.1 Living Room: Samsung 64” F8500 Plasma, Anthem MRX 300, Dynaudio Audience 52’s, Dynaudio Audience 122C, NHT SubOne, Roku Express (2019)