Good game to play after Sekiro.

I loved Sekiro but I am not sure what to play now ive'd platinum'd it. I heard fallen order is pretty good but im not sure. Also Dark souls, another fromsoft game, but i've heard its unpolished and clunky in alot of areas.

Dark Souls was pretty much the second game in the subgenre that the series pioneered, with games of this style literally now referred to as being a soulslike. As an early effort made almost a decade ago, it's inevitably going to be a little rough around the edges as the developers (and broader subgenre) really found their feet. Its two sequels, Dark Souls II and III received far more universal acclaim. Other games that can be described as strictly soulslikes include The Surge (sci-fi), Bloodborne (gothic horror, PS exclusive), Fallen Order, Ashen (fantasy), Code Vein (post-apocalyptic/anime), Darksiders 3 (dark fantasy, very different to DS and DS2 in gameplay), Hellpoint (scifi/horror), Immortal Unchained (scifi/horror, ranged combat focused), Let It Die (scifi/anime), Lords of the Fallen (fantasy), Mortal Shell (horror/fantasy), Necropolis (fantasy, procedurally generated), Nioh & Nioh 2 (Japanese fantasy), and Remnant From the Ashes (dark fantasy, looter, ranged combat focused).

Branching out from this specific style of game, have a look at Metroidvania and Roguelike games, which are typically 2D but with similar tropes to soulslikes like an emphasis on boss battles and significant consequences for death. They predate soulslike as a gaming trope, but since its popularity has exploded over the last decade, many MV/RL games have started to adopt elements of SLs like punishing difficulty curves and scavenging resources from your last body.

If you're looking for something similar to Sekiro I'd highly recommend Bloodborne.

Yea I dont have a playstation so not happening unfortunately