Make time to volunteer at a public service organization that you believe in -- at a food bank, animal rescue center, food delivery service for shut ins, etc. This will enable you to engage in emotionally rewarding service and meet people who are of the same "help out" attitude.

I have found that helping others, even for just a few hours a week will improve your mood, take you out of your own head (instead of thinking about being lonely, you are focused on others in need for those few hours) and connects you with others with similar mindsets who also volunteer.