Welcome to the forum! Could you give us a bit more detail on what specifically you're looking for? Your question is so broad that many books have been written on those general subjects, and many
of the hundreds of thousands of posts on this forum are dedicated to answering different pieces of that big puzzle.
Your question is like asking, "What is the best vehicle to buy for offroading, city driving, and the racetrack?" There is no right answer to that question. Different vehicles are better suited for each, and within each category (and subcategories of those categories) you'll find so many different opinions that it would make your head spin.
In order to glean information that will be best suited to where you are, and how you fish (or want to fish), you'll have to provide a bit more detail.