Where will the chicks be raised, inside your house, barn, garage, chicken coop? Where they are may impact how much heat is needed and what your safest option is.
The heat lamp danger primarily comes from electrical cord damage (which can happen with any heater when rodents are present) or a broken bulb (the glass is hot and can ignite the dust/bedding/feathers in a coop). In a chicken coop there are birds that can hop up and down, flap a bit, and potentially bump and shatter a heat lamp. If you have chicks in a brooder with a wire lid between them and the light and there are not other animals in the room (so it's in your house perhaps a room that other pets/people don't go in) there's not too much risk of something happening to it. Also your house is generally climate controlled and they may be able to be off heat sooner than if they are outdoors.
Some designs are better than others, but browse through this for some inspiration.
https://www.backyardchickens.com/articles/category/incubators-brooders.27/
Also
@Blooie has some good info on brooding, outdoors, cold temps, etc.
https://www.backyardchickens.com/articles/yes-you-certainly-can-brood-chicks-outdoors.68067/
https://www.backyardchickens.com/articles/brooding-with-mama-heating-pad.67728/