The best rpg games like Fire Emblem Path of Radiance are Fire Emblem: Radiant Dawn, Fire Emblem: Three Houses and Fire Emblem The Sacred Stones. Below are 8, each with the reason it is here — and, at the end, what filtering to rpg costs you.
Filtering to RPG means you want progression — a character to build or a party to grow — layered on top of whatever else you liked.
What you get: A reason to keep going after the novelty wears off. RPGs are the genre that reliably converts hours into feeling more capable.
What made Fire Emblem Path of Radiance worth playing in the first place is covered on the full list. This page is the rpg part of that answer, and only the rpg part.
The direct sequel, and it assumes every bit of this one.
The modern entry, with a school year wrapped around the battles.
The GBA entry with a world map, and the friendliest starting point.
Modern turn-based tactics that takes its politics seriously.
The best new tactical RPG in years, and it shares the exploration overworld.
Branching routes and heavy consequences.
Friendlier than Fire Emblem — units do not die permanently.
Turn-based tactics where you drive the unit yourself.
Immediacy. Almost every RPG asks for a slow first few hours, and the systems that make hour forty good are the same ones that make hour one a menu.
Specifically, these are strong answers for Fire Emblem Path of Radiance that are not rpg games, so they are not on this page:
The full list is on games like Fire Emblem Path of Radiance — 9 picks, no genre filter.
Fire Emblem: Radiant Dawn. The direct sequel, and it assumes every bit of this one.
No. Fire Emblem Path of Radiance released on the Nintendo GameCube, but a recommendation is only useful if you can play it, so the picks above span platforms and eras. What they share is the genre and the reason.
Whether the stats are the point. In an RPG the build decides what you can do; in an action game with stats the build only decides how fast you do it.
No. The picks below span turn-based, real-time and action RPGs, and each one says which it is.
By hand. Each pick was written for the full Fire Emblem Path of Radiance list first, on what the game actually does, and this page is the part of that list that is rpg — never a genre tag lookup, which is how "best racing games like Super Mario 64" used to be a page on this site.
Or read the rpg guide for where to start in the genre generally.