I highly recommend a brooder that opens from the side, not from the top. Chicks have an instinctual fear of death from above (aerial predators) and will be more afraid of you if you reach down from the top. Also recommend a brooder that’s not opaque - or at least not on all sides - so they can see out and get accustomed to sights and sounds. And raise the brooder up on a table, not on the floor, so you’re at their level and not looming above. All this will make the chicks less afraid and more accustomed to you and the world.
Raise the feeder and waterer on a brick or wooden block to keep them clean. At the level of the chicks’ backs. They don’t need to bend down to eat. The higher, the better.
Play sand works great as brooder bedding! I’ve been using that for two years now and I love it. Quick and easy to clean, and less wasteful, because you don’t have to keep throwing it out like soiled shavings.
Here’s my brooder setup from this year. I loved it!
https://www.backyardchickens.com/articles/diy-chicken-tv-brooder-v2-0.76524/