Especially after a couple of years of corona virus and in a world of increasing instability more and more people are feeling lonely and insecure in life. Therefore I suggest that someone with a strong enough connection to/with the Beatles create a special worldwide spread café chain called Sgt Peppers lonely hearts café that to a high degree aims to connect lonely people with each other.
Of course anyone who wants to have a cup of coffee (covfefe?) or whatever is served at the establishment should feel welcome to enter the premises, but by doing so you're also agreeing to its core concept of bringing lonesome people together in a meeting point where it's more ok to make new connections rather than just sitting alone over whatever You consume. Kind of like a dating place or just a drop in joint where what You consume is the fee You pay to signal that You wish to make new acquaintances in life.
Perhaps the interior should have obvious connections to varying Beatles and rock history memoriabilia and/or even play Beatles and other sixties- + Lennon/McCartney/Harrison Starkey-related music? Imagine a variation of a Hard Rock Café environment but with the main purpose of bringing all the lonely people (all) together...
Edit: I Rocky Reckon that karaoke nights and open stage evenings could also be a nice touch to the overall concept.