Duels.ink - an online simular where you can practice and find online games of Lorcana for free
Dreamborn - a deckbuilding website where you can brainstorm ideas for decks,
Ink Decks - An advanced website that shows tournament decklists, tournament results, and metagame information. Can be an extremely useful tool to start finding great decks
TCGPlayer - TCGPlayer is the premeire website for pricing cards or buying cards on the market.
Ravensburger Official - the official website for Disney Lorcana can give you information on current/upcoming products and official events