Well, you have Diablo 2: Resurrected
and, at this point, has ladders for you to climb. Yes its Diablo 2, but its a good remaster in my opinion.
Theres also Lost Ark
which is F2P. I would at least give it a chance, it has good combat for an ARPG but its full of grindy MMO tropes if you can deal with it.
Embark on an odyssey for the Lost Ark in a vast, vibrant world: explore new lands, seek out lost treasures, and test yourself in thrilling action combat in this action-packed free-to-play RPG.
As far as isometric ARPGs go, I could think of of two, and those are on my Steam Wish List. One is Wolcen:: Lords of Mayhem.
It still has mixed reviews on Steam, and from what I've read the initial release was buggy and incomplete, but Wolcen Studio has since made several updates to fix things. I haven't purchased it yet, but it always looks interesting.
A dynamic hack’n’slash with no class restrictions. Choose your path as you level-up and play your character the way you want! Explore this shattered and corrupted world to uncover its ancient secrets and hidden truths.
This game is not worth it imo and, although it looks pretty good, its kind of a boring ARPG. Its nothing like where they were heading with the game, but i guess if you are looking to expand your ARPG list, you can pick this up, but i say pass.
If you like Warhammer lore, there is this neat ARPG-style Warhammer game called Warhammer- Martyr, i like it, its ARPG with machine guns, bolt guns and other warhammer classics and its currently only 12.49 usd.
Enter the Chaos-infested Caligari Sector and purge the unclean with the most powerful agents of the Imperium of Man! W40k: Inquisitor – Martyr is a grim Action-RPG featuring multiple classes of the Inquisition who will carry out the Emperor’s will.
Grim Dawn is an excellent game.
The people who made Titan Quest now make Grim Dawn. I had Titan Quest long ago. I didn't like how areas don't respawn after you been through them.
Titan Quest also had a new DLC introduced sometime within the last year, i dont know if this problem exists still for you but, it does have new DLC (enemies,map, items etc.)