End rhymes that present a pattern are called rhyme schemes. Common rhyme schemes are AABB (where the first two lines rhyme with each other and the next two lines rhyme with each other), ABAB (where the first and third lines rhyme, and the second and fourth lines rhyme), and AAAA (where all lines rhyme with each other).
rhyme scheme
I don't know what a "preasant" is - but it rhymes with 'pheasant'. It also rhymes with "pleasant" and "present".
Perfect end rhymes
no perfect rhymes, but for near rhymes try words that end with our.
It includes alliteration, word repetition, and rhyme. -Apex 5.2.4 Creative Writing
Counter and bouncer are "end rhymes", meaning only the end of the word (er) rhymes. They are not perfect rhymes. See the related questions below for "What rhymes with counter?" and "What rhymes with bouncer?"
They are end rhymes, meaning the end of the words rhymes ("ent") but they are not perfect rhymes, meaning the entire words do not rhyme.
no perfect rhymes, by for near rhymes look for words that end with der.
no perfect rhymes, but for near rhymes try words that end in ham.
no perfect rhymes, but for near rhymes try words that end with sts.
One possible word that rhymes with "gym" and has the same pattern is "trim."
Thanatology is the study of death and the end of life, and it rhymes with ology.