You might like:
Philip Glass: Concerto For Violin And Orchestra / Alfred Schnittke: Concerto Grosso No. 5, for Violin, an Invisible Piano & Orchestra - Gidon Kremer
I think that the three pieces on this will be of great interest to you.
Glass is very well known of course, I think that in this Concerto his ingenious placement of recurring themes is really very interesting. I think Schnittke is a much more developed composer than Glass in some ways, you will find there is much to explore in the Concertor Grosso.
The Glass on this CD is accessible and immediately enjoyable. Schnittke might take a bit of time to get to know.
You might like:
Kronos Caravan
This contains several pieces by different composers.
This CD is all accessible and immediately enjoyable.
The Kronos quartet has done a lot of work with contemporary composers, so you may want to have a look at their recordings.
There is much more of course but these have come to mind immediately.