The vent free gas log inserts I bought do not have a factory blower that goes with them. Is there a blower of fan that I can use with my logs/fireplace to push the heat out into the room better?

The blower you may have seen or heard about is not for a standard masonary fireplace. There are pre-fab metal fireplaces designed to accept a blower that pulls air around the firebox but not from the fire box. Do you have a masonary fireplace or a pre-fab?

From your PM you have a modular home with a pre-fab fireplace. We should keep your discussion here on the open desk. Is your pre-fab designed to accept a blower, you may need to check the manual or call the manufacturer. If the manufacturer says it will accept a blower buy it from them, blowers are too universal.