Best is subjective but most manufactures are very good. I don’t care for Lee products, others do. Rcbs, Hornady, Lyman all make good presses. There are starter kits and it probably is best to get one.
For a large rifle cartridge like 308 a single stage is best and for beginning as well.
Hornady Handbook of Cartridge Reloading is available for Kindel. You need to have a manual. There are others Speer, Seirra, Lyman and more. You must follow the manual. Fortunately online help is available as well.