I have written a lot of articles on different philosophers. Depends if you prefer ancient or more modern, Western or Eastern.

For example, I like Viktor Frankl's message (have several articles on him):

https://medium.com/mind-cafe/say-yes-to-life-5-forgotten-lessons-on-meaning-from-viktor-frankl-a396259ee020

I also have more stuff on Buddhism:

https://medium.com/mind-cafe/3-powerful-principles-from-the-dalai-lama-that-can-help-get-you-through-any-crisis-2a9823b3158e

Or Alfred Adler, whose work was inspired by Nietzsche:

https://medium.com/mind-cafe/how-to-have-the-courage-to-be-disliked-71b181c6fb1c

For more ancient stuff, here is an early article I wrote on how I apply some Stoic principles in my life:

https://medium.com/the-ascent/a-day-in-the-life-of-a-stoic-applying-the-thoughts-of-marcus-aurelius-to-overcome-daily-challenges-32de3c8708ee