Nearly all action games have some amount of RPG elements built into them these days. A few titles come to mind:

1. Horizon Zero Dawn and then Forbidden West.
2. God of War and then Ragnarok.
3. Spider-man, Miles Morales and upcoming Spider-man 2.
4. Read Dead Redemption, Read Dead Redemption 2.
5. Jedi Fallen Order, Jedi Survivor.
6. Guardians of the Galaxy
7. Resident Evil 2 Remake, 3 remake and 4 Remake.
8. Ghost of Tsushima.

Plenty more but that should keep you busy. All of these have character progression, leveling up, getting better gear to varying degrees combined with forgiving dificulty (which you can tweak).