Films where the lead character is a loner and is pissed at the world.

The original Death Wish (1974) with Charles Bronson. Not really a textbook loner, but he changes when ends up alone after he loses his family in the home invasion.

I've never seen the Bruce Willis remake, but I assume it's a similar premise.

Taxi Driver
In a Lonely Place
Psycho
Carrie
Rebel Without a Cause
The Wild One
The Mechanic
Of course these refer to the originals, not the ripoffs.

Jesus of Nazareth

The Punisher (1989) with Dolph Lundgren
The Punisher (2004) with Thomas Jane
Punisher: War Zone (2008) with Ray Stevenson

Dracula

Next Gen (2018)

How To Kill Your Neighbor's Dog.

Charlton Heston in The Omega Man(1971)