I need help finding a specific type of theme

Hello, i am looking for a theme where i can make a post and the post will have a short description and a large image. I want the posts to show up on the front page in a gallery like format 3 wide by infinite long. I want the posts to all follow the same format so they fall into a nice grid. Preferable in order from newest to oldest. It can have infinite scrolling or be set up in a way where you scroll to the bottom and hit “next page” or something like that. Any suggestions?
Thanks