Perifractic has a released a new episode of his Retro Recipes show all about buying a C64 in 2019. This episode contains a heaping spoonful of good information to get you into the modern C64scape.
Retro Recipes is good show regually posting informative episodes that are more often than not about the C64 and other Commodore related hardware & software. Occasionally he works on other 8-Bit systems as well. Ladyfractic is also quite easy on the eyes.