https://www.coloradocancercoalition.org/support-groups/#tab-id-10 ?

We are excited to start a Southwest Colorado Men’s Cancer Advocacy Group to inspire men to stay connected and avoid isolation during their cancer journey. We have the goal of helping men face cancer together. This group is about easing each other’s burdens, offering mutual support, and encouraging men to continue living fully, despite the challenges of cancer.
Our meet-up will provide a space where participants can both give and receive support from others who understand the struggle. Whether it’s sharing lunch, watching a game together, going on an outing, or simply talking about life, this group fosters connection with an Open Heart and a Warrior Spirit (Trevor Maxwell, Man up to Cancer.) This group is open to Cancer Warriors and their caregivers.
If you’re interested in joining, please contact Phil Campbell at Cancer Support Community Southwest Colorado by emailing him at hope@cancersupportswco.org; or calling 970-403-3711.

Depends on where you are. I don't know anything about Denver. Apart from John Denver.