Just off the top of my head, Spiderman, kh3, Cyberpunk 2077, gears 5, tlou 2, halo infinite.

Edit: oh you said 3, Gears 5, tlou 2, and Cyberpunk 2077.

Just three? Okay.

Super excited for Super Mario Party. I can see myself just having an insane blast playing it with friends and family. Smash Ultimate is another.
Battle Toads is something I'm hoping turns out great.

1. Forza Horizon 4
2. Tales of Vesperia Definitive Edition
3. Shadow of the Tomb Raider

1. Sea of Solitude (EA) looks interesting, artstyle gives me Gravity Rush/WW vibes;
2. My Friend Pedro (Devolver) looks fun and crazy, I love the insane kills;
3. Daemon X Machina (Nintendo), mechs with katanas and great artstyle.

Cyberpunk, far and away #1
Horizon 4. I’ve DESPERATELY wanted an arcade racer for awhile. It seems too late in the game to buy H3, and not much else is appealing. H4 looked amazing.
Battletoads.

It's hard to choose 3
Spider-Man
Resident Evil 2
Doom Eternal

For this year Forza Horizon 4, Spidermand looked the best.

For the future, gears 5, last of us 2, resident evil 2 and cyberpunk 2077 stole the show for me

-Smah Bros Ultimate: Because Ivysaur.
-Star Control: Origins: It looks really interesting, plus I always liked Spore.
-Tetris Effect: That presentation is mesmerizing.

I never get games "right now" I always wait for sales and good deals. But as a mental challenge, let's go for that.

From this E3 the 3 games that I would get right now (as in I really care for those games) would be:

- The Last of Us Part 3

- Doom Eternal

- The Elder Scrolls 6

But I also want Nioh 2, Dying Light 2, Ghost of Tsushima, Death Stranding...

Either E3 is becoming more of s third party showcase for the big 3 or no one had anything much to show.

As for games :

Spidey 

Cyberpunk 2077

The platinum games game