Yes real things are the best but weighty and not arrangers.

I use good simulation with LIONSTRACS X76. I’m having B4 and B4II. All are good simulations of organs and also X76 is arranger.

Also good is XB1. XB1 is for my filling little to less hard.

I also hade one combination with Korg and this are great combination anyway. It is very hard to find good combination.