One thing you mention, floop houses, aka single room occupancy (SRO) units don't really exist anymore though. They were shut down over higher building code standards (because fires) and public health concerns. Although those issues were often overstated and it was supposedly "morality" concerns that played a bigger part. Now since covid, rent has increased dramatically and there's been a corresponding increase in working, non-addict, homeless where I live and that type of housing could help.