When we group reasons into family resemblance groups, we find four major groups, with one of them having three subgroups. The following are the kinds of reasons people ultimately have.
variations on pleasure, pain, noxiousness, disgustingness
variations on my self interest, what is good for me (or bad for me), what is to my advantage (or disadvantage)
variations on what is right or wrong, good or bad, fair or unfair, just or unjust and with whether I have a duty or obligation
variations on the primitive notion of fittingness
how things fit together
what the situation calls for
the facts of the matter