Samkhya Philosophy (https://en.wikipedia.org/wiki/Samkhya) gives a far more comprehensive model to analytically go beyond the three sources of suffering (viz. from own body/mind, from other beings/things, from acts of god).

You can then think of specific practices from Buddhism eg. Tibetan Lojong - https://en.wikipedia.org/wiki/Lojong - and Stoicism as applications within that framework.

PS: Keith Seddon's Epictetus' Handbook and the Tablet of Cebes: Guides to Stoic Living is one of the best books in stoic literature. - https://www.routledge.com/Epictetus-Handbook--and-the-Tablet...