I need to find Assonances in the poem the hunchback in the park by dylan thomas?

here’s a copy of the poem, help really needed, and would like as many examples as possible !
The hunchback in the park
A solitary mister
Propped between trees and water
From the opening of the garden lock
That lets the trees and water enter
Until the Sunday sombre bell at dark
Eating bread from a newspaper
Drinking water from the chained cup
That [...]