I really encourage you to use F#, as someone who's done C# for a long time I find F# (while not perfect) does strike near to that ideal balance of FP / imperati

I really encourage you to use F#, as someone who's done C# for a long time I find F# (while not perfect) does strike near to that ideal balance of FP / imperative you speak of. Writing functional code naturally is a breeze, while the language isn't going to punish you or feel awkward if you need to drop in some mutable state or OO programming