That depends on the cat.
My Jasper would NEVER do well in a one cat home. He loves other cats (not unneutered males though).
Sweet Pea does well with other passive cats as does Puddles.
Some cats seem to take a shine to each other right away, some will never get along.
Cat maid to:
Puddles, female Himalayan (16 yrs)
Jasper, male Ragdoll ?? (approx 9 yrs)
Sweet Pea, female silver tabby DSH (approx 7 yrs)
Rose semi feral, a cpietra rescue, female tabby (approx 6 yrs)
Snowball RIP (1991-2005)
In a cat's eye, all things belong to cats.-English Proverb
“While we are free to choose our actions, we are not free to choose the consequences of our actions.” Stephen R. Covey