If you know of someone sick, lonely etc. call them and make contact. Don't wait to be supportive to somebody. We no longer live in villages so we are encapsulated in our homes, walled in and surrounded by fear of loss; us loosing what we have. Being supportive to someone doesn't cost a dime it just costs a few minutes of your day.
The Laws Of Visiting The Sick - When a person is ill it is a Mitzvah (good deed) for everyone to visit him/her, for we find that the Holy One, Blessed is He, visits the sick, as our Sages of blessed memory explained the verse, "And God appeared unto him (Abraham) in the plains of Mamre, teaching us that, "He cam to visit Abraham when he was sick.Even a great man should visit a less important person even many times a day. The more one visits the more praiseworthy it is, providing it is not becoming bothersome for the sick person
The essence of the mitzvah to visit the sick, is to determine the needs of the patient to see what has to be done for him, and to make him comfortable with his friends. You must also bear in mind to pray for mercy on his behalf. - Kitzur Shulchan Aruch