[hopewrites]

to truly answer your question you have to look back at the mythologies and see what they were trying to show. Each culture has its own because each culture has its own way of organizing their society, the overlaps from each come from the overlapping needs of cultures. ie people who need to hunt to survive will always have somegod who over sees hunting, people who give birth will need somegod who oversees life, people who die will need somegod who over sees death...
how you modernize them will relate directly to how they fit within their pantheon in modern society. and how their rolls will have shifted and changed over the ages to modern mentality and modern needs. Hunting is now more for sport than for sustaining life, so the hunting gods will ether become more sportsmanish or oversee the "breadwinning" occupations that would be most suited to their tastes while still representing themselves as God-of-providers.
see where i'm going? if not i can come up with more examples.