Anyone who wants
Anyone who wants to feel good about the way that they are spending their days may want to get involved with some kind of voluntary work.
They can help those who are lonely or who need support raising their kids. They can help those who are lacking the basic necessities or those who are struggling with a variety of health issues.
Whatever they feel called to do, they can give of themselves and their time to make the lives of others better.
When someone starts focusing on the needs of others rather than on all that they want to do in their personal life, they will feel good about themselves.
They will feel like they are living their life in the best way when they start doing voluntary work.
They will have a greater sense of purpose each day when they wake up to do this kind of work, and they will be glad that they can make other people's lives a bit better through it. They can use their time, effort, and talents for good, and that will make them feel good.