I know that you need to consult your owner's manual for detailed information on how to replace a headlight bulb in a particular car, as well as what headlight bulb to buy. Do you know of such web resources with such information?

If you always drive with your headlights on, you can expect the bulbs to burn out sooner than if you only drove at night occasionally. Car bulbs have pin and flange bases of different designs. I would advise you to find a bulb sizing chart. I found a selection of LED headlight bulbs for my wife's Toyota 4Runner car on https://headlightsize.com/toyota-4runner-bulb-size/ . I liked this web resource for its convenience and interface.