https://www.amazon.com/Daily-Stoic-Meditations-Wisdom-Persev...
One of his better works imo
There is a passage for each day of the year (less than 2 pages of reading) and a theme for each month.
https://www.amazon.com/Daily-Stoic-Meditations-Wisdom-Persev...
[0] - https://www.amazon.com/Daily-Stoic-Meditations-Wisdom-Persev...
My suggestion is to find a school of thought that you find useful enough that it can actually guide you in your everyday life.
For example, many people on HN find Stoicism easy to understand and fairly applicable - but maybe not always easy to apply - to their daily lives. I can recommend "The Daily Stoic" by Ryan Holiday and Stephen Hanselman [0] as a good introduction to stoicism with modern commentary.
[0] https://www.amazon.com/Daily-Stoic-Meditations-Wisdom-Persev...