You might give the Tartakower variation of the QGD a try. It's solid but interesting.
Solid simple black reply to d4
the lines with be7 are simpler than others. the cambridge you only want to use in conjunction with the semi slav as otherwise you don't want to be playing c6 too early in a qgd that's not a slav. there is the nbd7 line, going for the tartakover, but avoiding the bxf6 lines where you have to take with the bishop, and also having something against the bf4 qgd. either on move 4 or 5, you play nbd7.

Maybe Slav Defense is what you're looking for, it has pawn structure like Caro- cann and very harmonious development.

As I try to focus more on endgames and basic stuff at the moment (1700 Ell otb) I have toned down my openings and want to have just simple playable positions after ten moves or so and take it from there. Scotch four knights and with black Scandinavian qd8 fit that bill. Against d4 the Lasker defense gives me some trouble however and I wonder if there are alternatives that are also solid and simple. Been thinking about the Cambridge springs, orthodox (a6 Swiss?) defense, Slav. Any opinions on what might work? Old Indian or rat with early queen exchange? No Albin or Tarrasch at the moment, although they are no doubt easier to win at club level..