Each character class has specific weapons / Armor & charms that they can use, and when you start unlocking characters, the also fit in this category. So, the most expensive are EE Daggers / Axes, EE Scales (HH usable, but not if stuck on Monk / Ninja where they rely on robes like a Mage / Warlock)
So, you are not sure whether you will stay with the game, just want to spend your free time playing around, well in that case... Take a look at what weapons can be used with the Feeder, Samurai and then Paladin... They can all use swords, not as expensive as axe or dagger, so in this case, you would start with a Fighter instead of a Barb. There isn't any real difference with stat points, and either Barb or Fighter can use Powerstrike + Retribution (solo optimal).
Classes found here;
https://ladderslasher.d2jsp.org/index.php?g=2 ... Note, all basic information is linked on the left side.
Hope this helps, and the basic guide link provided on page one is a good start.
Also, many people will tell you not to listen to me because I choose Guardian, heavy weapons and don't use EE armor...

I just like being the odd one out.