Mnementh on 14 December 2018
Well, the obvious recommendation is Zelda BOTW, this game is great.
After that it depends strongly on your preferences.
turn-based RPGs: Octopath Traveler, Child of Light
action RPGs: Xenoblade 2 and Torna
strategy: Civilization VI and Mario+Rabbids
???: Katamari Damacy Reroll
Whatever you decide, bot Octopath Traveler and Katamari have demos, you should try at least these demos.
