Benton Citrange is quite passable, slight mandarin flavour, better than Troyer or Carizzo Citrange.
Thomasville Citrangequat is not too bad.
Swingle fruit are ok here, Pineapple scent with a bit of Trifoliata.
As I remember from Citrus Growers Forum, a member had a fruiting Swingle in Germany but found the fruit not so great in that climate.