In Path of Exile, the important aspects of playing it is grinding. You can kill the same creatures on a continuous basis to gain as much experience and poe items as you desire. The specific locations spawn repeated enemies to yield experience points and even the chance to earn some decent gear. There are three best areas for Path of Exile farming.
The first location is The Ledge in Act 1. The Ledge is the best place for you to start farming for Act I. Towards the end of the first Act, you’ll find The Ledge inhabited by Cannibals, Rattling Bones and Ancient Archers for you to kill repeatedly, and they are pretty easy to do so. Not only that, but killing them will also earn you an impressive amount of EXP. As far as gaining new equipment is concerned here, you can also find Rare Mobs with useful equipment for your character at such an early stage.
The second location is Fellshrine Ruins in act 2. Going forward into Act II, you’ll want to find Fellshrine Ruins to continue grinding. The several enemies here shouldn’t cause you too much trouble bar the Hulking Titan, and that is only based on its high HP and strength, which shouldn’t be that hard to deal with if you’re a melee character. Ultimately, your goal is to kill blue and yellow mobs throughout, and it will be especially relevant in this area, so prepare for your inventory to fill up pretty sharp here. For access to the Fellshrine Ruins, you will need to enter the Church Portal. While you’re here, you can raid The Church given that the two are connected, just for some additional EXP.
The third area you’ll want to head to is The Docks in Act III, which can be found via the Battlefront exit. Here, you will find a location that has both higher and lower paths which you can check out. However, this area houses the Voidbearer, who presents a rather difficult challenge. Therefore, you may want to hang on until you reach level 60.
Act III in particular is a great place for farming, and there are honorable mentions to other places such as Marketplace and Lunaris for all your farming needs. But if the base need of experience and gear is what you require, then The Docks is your best bet.
Perhaps the above guide are not the best, but it will certainly help you. In addition, having enough currency is never a bad thing. You can buy poe orbs on U4GM.