Additional Support Groups
Though they aren't support groups, these social media sites are allow MAPs to support each other on their platform. Posts on these sites may be publicly visible by default and you should take precautions, such as adjusting your privacy settings, to ensure you do not receive unwanted interactions from individuals who target MAPs.
Discussion of Pro-Contact Beliefs
These support groups allow members to discuss the belief that sexual activity between adults and minors carries a risk of harm due to negative societal attitudes, not due to an inherent inability of minors to consent to sexual activities with adults. If such discussions could make you uncomfortable, you may want to consider other options.