XCOM: Enemy Unknown is a great turn-based strategy game with lots of RPG elements for your individual soldiers (and permadeath). The base game is great, but there's also a mod for it called Long War that turns everything up to 11 and is one of my favorite games ever.
This series gives a good idea of the base game: https://www.youtube.com/watch?v=z9zJE9GodMQ
(if you're interested in the mod as well that channel has tons of videos on that too)
Battle Brothers is another great turn-based strategy game in the same style.
Either of these are good picks if you want something a bit different. The depth of strategy in either title is incredible.