TLoU:Pt1 Remastered is a safe bet. One of my all-time favorites. Astro Bot is another obvious choice. Heard a lot of good things abt FFVII:Remake/Rebirth (that is if you are looking to invest >50hr into the games...I gave up after 20hr lol. Good games, just a little longer than I care for personally).

Astrobot's a definite choice but not my first I don't think... or hell, it is the best reviewed one...maybe. TLOU pt1 graphics would wanna be domething special though, I mean I wouldn't mind playing the ps4 remaster o fit which I own. 

Dragon's Dogma 2
Resident Evil 4 remake
Resident Evil 8: Village (particularly if you are planning to get PSVR2)
Astrobot
Baldur's Gate 3
God of War Ragnarok
Dead Space remake
Final Fantasy 7: Rebirth (or FF7 intergrade if not yet played)
Final Fantasy 16
Horizon: Forbidden West
Ghost of Tsushima
Gran Turismo 7 (especially if you plan on getting PSVR)
Demon Souls remake
Animal Well is a good metroidvania indie game (although it's not exclusive).
If your into Dragonquest, the Dragonquest 3 HD-2D remake is out in a few weeks. They're also doing 1+2 remake next year too.

It's hard to only mention one lol. If I had to choose one to recommend I might recommend Dragon's Dogma 2 or Resident Evil 4 remake (I know it's still more than one, but It's hard to choose XD). I'm also gonna get Dragon Ball Sparking Zero soon. As a big Dragon Ball Z fan it's been a while since I got a new Dragonball game.

Nice list, thank ya. I got Dead Space remake on PS+ for free. Right now, Demon souls or just going straight to Balduars gate 3 is in the winning corner although upgrading my ps4 games to ps5 is also an idea which would give me an excuse to finish some I've been putting off like REmake 4, haven't finished Ragnorok and that it'd be an excuse to do so but Returnal, Wo Kong and Stellar blade are so tempting too. Argh, this is a hard choice. Especially when Adtrobot is everyone's GoTY. 

Oh shit. Black Ops 6 is out this week too.

I love Horizon Forbidden West. Epic adventure, everything improved over Zero Dawn, amazing graphics, lots of content. But it seems to be a decisive title. I couldn't get on with BG3, so perhaps my tastes are opposite of yours.

Still the biggest blow of PSVR2 was, Call of the Mountain. That's not a Horizon game :/ (Still fun, apart from the gimped combat)

This is :)

One additional recommendation I'll throw in is Returnal. I'm not really into roguelikes at all, but this game was awesome! One of the best showcases for the features the PS5 offers. Including features such as the DualSense and 3D Audio.

I just seen the list of all free ps4 to ps5 game upgrade I'm not short on content at all lol. Cyberpunk 2077 might actually be playable now and so many other I didn't beat on ps4 like you mentioned Forbidden West, got ten hours in and forgot about it aswell as Ragnorok. First time I bought a new system with a library available to me out the gate plus all the ps5 only PS+ essentials stuff. 

And def gonna get a PSVR 2 but not until I find one for less than €200. That's the most I'll pay for it cause I'm only really interested in it being a dedicated GT7 machine.

You might change your mind after you get one. Plenty great games out already and more coming soon. (Metro Awakening, Alien Rogue Incursion, Aces of Thunder)

And if you're into rpgs, you might enjoy Legendary Tales.

PSVR2 needs to go back on sale, but 200 euros, I doubt it will go that low.

The first two games I've played on my PS5 were Alan Wake 2 and Astro's Playroom. These are the graphical intensive games that I've played since then:

1. Cyberpunk 2077, but didn't beat the game
2. Spiderman 2
3. Star Wars Jedi Survivor
4. Doom Eternal, but didn't beat the game again on PS5 (I already did on PS4)
5. Control Ultimate Edition
6. Astro Bot
7. Silent Hill 2

Baldur's Gate 3, Metaphor, the REmakes, FF16/7 Rebirth, Dead Space and Returnal are all on my backlog. There's also some PS4 games that I have that run in a stable 60 fps on the PS5 (Sekiro, NieR Automata, Ghost of Tsushima, Final Fantasy 15) but I haven't played any of these yet.

Play Astro's Playroom I'd say, it's free! And if you like it then Astro Bot is a very safe bet of what to buy next.