Adult Autism support group - help needed

Hi there. Am recently diagnosed with Autism (and ADHD) as a 44 year old adult and starting to realise  and accept the impact it has had on my life and those around me in particular. I am looking to find a regular support group and wondered if anybody had any good suggestions for some, particularly around relationships.

My preference is in person but have struggled to find any around in and around Southampton when searching online where I live other than specific parent/child ones. However, would be happy to take suggestions for an online one, particularly if anybody knows one that covers adult ND/NT relationships. 

Any similar Facebook group suggestions also welcome. 

Thanks