Elden Ring! I think they really refined the formula, made it a bit more user friendly (I started with Dark Souls and it wasn’t easy to know what to do), and is generally fun to play. Also the open world format means you can just go somewhere else if you’re stuck, not just have to bang your head against the same boss over and over. Then you just come back when you’re stronger.
Sekiro is not a bad option too, it’s a bit more like a regular game than the others. You can pause! Imagine.
I haven’t played DS2 or Demon Souls though
In the year 1,000,000 and a 1/2, humankind was enslaved by giraffes