The only song that comes close to rivalling In My Life is The Beach Boys God Only Knows. It's important to remember that hardly nobody were introspective in music at this point. John Lennon could be classed a genius solely for this track. Completely underrated in what it did for music and songwriting.
Know this is old, but thought Gerry and The Pacemakers Ferry Cross The Mersey, which predates In My Life by a year, deserve a nod:
Life goes on day after day
Hearts torn in every way
So ferry 'cross the Mersey
'cause this land's the place I love
and here I'll stay
People they rush everywhere
Each with their own secret care
So ferry 'cross the Mersey
and always take me there
The place I love
People around every corner
They seem to smile and say
We don't care what your name is boy
We'll never turn you away
So I'll continue to say
Here I always will stay
So ferry 'cross the Mersey
'cause this land's the place I love
and here I'll stay
and here I'll stay
Here I'll stay