Go to church. Data from various studies, including those from academic institutions and public health organisations, supports the idea that regular church attendance helps reduce loneliness by fostering social connections, support networks, and a sense of community. 1. https://pmc.ncbi.nlm.nih.gov/articles/PMC3551208/ 2. https://www.psychologytoday.com/us/blog/human-flourishing/20... 3. https://hrbopenresearch.org/ar…
For what it's worth, I tried that a few years ago. It worked for a while. Then I realized that my church relationships were paper thin and that I'd be forgotten the day I stopped coming and/or I started showing that I didn't really believe in what was preached. Got better connections through improv acting and role-playing game. YMMV
Personally speaking I find the need to conform to the church's norms/expectations to not be ostracized at minimum chafing and in the worst case stifling. The third place and social aspects can be nice but being told how to live and exist isn't.