game suggestions for xbox one

I would rent sea of thieves before buying. There's a lot of division over that game.

If you like World building checkout Tropico 5, civilization revolution, and Lego Worlds.
Tropico 5 you're a dictator in charge of a carribean island. You decide what your Import/Exports are, the politics, you can be a resort, or an evil dictator. Its not quite as fun as Tropico 3 but that's only becuase I'm better at that one. Also I just have the 360 version, but I bet the One version is better just for the mode where you make your own Island.
Civ Rev is more button pressing strategy than build the world how you want it. You pick a location for your city and name it. From there you decide how to win by creating the best world economy, most advance science research, military domination, and cultural conquest. Its a great way to pass a couple of hours and dominate the world without getting super micro managey about individual troop placement.
Lego Worlds has no real tactics, just go about and find stuff. Once you go through the game and get your 100 gold bricks (sounds like alot but it really didn't take long). You can creat worlds where you can be very custom about what you build, as long as its a building, no cars or space ships that aren't prebuilt. The tunneling is kinda cool too. I would creat a tunnel to an underground hideout with a house and garage, fully lit ceiling. You can also copy and modify existing brick builds. If you liked legos and wush you could build with them but don't want to spend hundreds collecting bricks I would recommend this. There is also monthly or weekly brick build downloads that are free. The exspansions that you buy are kinda neat too. You can't just go and find everything either since it's so random. It could be better but I don't hate it.

Monster Hunter world is brilliant despite the Japanese quirks like talking cats and ridiculously huge weapons. The game is very well made and the devs are clearly very passionate about it. There's also no bullshit lootboxes etc.

Witcher 3 is nothing short of amazing. Subnautica is a brilliant survival game. Metal gear solid the phantom pain has really good reviews. For fucking about Just Cause 3 seems good and is on sale for 6 quid in the xbox spring sale atm.

The guys above have pretty much everything covered. Ill throw a couple of F2P games into the mix in the form of Warframe and Neverwinter. 

I've recently been giving some love to Elite Dangerous as I picked it up almost 2 years ago but never gave it a fair crack and its now sucked me in.

Other must plays in my opinion are, Witcher 3, Assassins Creed Origins, Monster Hunter World, Minecraft (dont judge lol).

It all depends if your looking for something solo or to team up and play in a group. 

Good luck on the game hunt.

+1 on the recommendation of subnautica, very good game at a low price. 

State Of Decay 2 comes out next month. If you like 7 Days To Die, you should check it out.