One of the easiest methods for removing them is to use a fine tip soldering iron and add some fresh solder to each end of the resistor. Heat either side back and forth until both are molten, and the resistor can be removed.
An easier way to do it is to use a special solder called Chip quick, and what that does is stay molten longer than your typical solder, which allows you to remove the component easily. https://www.amazon.com/ChipQuik-SMD1-Leaded-Temperature-Removal/dp/B07XD9VFSZ
If we were to do it here, we would simply use a hot air rework station, but the average person may not have such a device.