Seeking an Inpatient or Outpatient Mental Health Program for Autistic young adults

Please help. I am an AuDHD mum desperately trying to find the right help for my 19 yr old. He is Autistic with a lot of mental health problems: generalised anxiety, social anxiety, depression, suicidal ideation, alexithymia, occasional selective mutism and feelings of derealisation, plus mental symptoms that developed as a reaction from SSRI's and withdrawal from quitting cold turkey: paranoia, living on the streets, suicidal graffiti, parasitic lifestyle. Talk therapy for neurotypicals has not worked for him because of communication differences and alexithymia. Anti depressants have only added to his problems. A religious charity is trying to help, about to send him to an inpatient clinic in Netherlands called Yes We Can. But I did some research and discovered on Reddit it is based on the 12 steps and is mostly for addicts and teens with bad behaviour. It is abusive and causes trauma in survivors. He needs a good referral ASAP. If I don't do anything he will end up sectioned.