Every newcomer thinks it takes 2 weeks to learn about electronics.
After 40 years I know about 0.5% of electronics.
Even working out the correct type of capacitor for a particular application takes months, if not years, of experimentation and knowledge.
I fixed thousands of TV's that failed after years of service due to faulty capacitors.
Using the correct type of capacitor requires a lot of understanding and no textbook, course or web page has ever provided anything like the necessary facts.
For most applications, the type and manufacturer does not matter. But when it comes to high frequency, spike suppression, high voltage, ripple rejection, drift, etc, only experimentation and soak testing will find the solution.
The OP asked the one question that has never been answered.
You need to select each capacitor in a circuit and describe the type, what it does and why it has been selected. You can also talk about other types and why they are not suitable.
I have done this on my website but the information is scattered over the 20,000 pages of articles.
The best idea is for the OP to supply a circuit diagram and someone can discuss each of the capacitors and why they have been chosen.