If your picture is correct, you are sufferring from negative camber. When the tops of the tyres are closer together than the bottoms. Toe in is when the front of the tyres point together.
Negative camber can not be fixed with a wheel alignment on an e30 as there is no adjustment. It is caused by worn or broken suspension components, an accident damaged vehicle, or by lowering the car.
If you car is lowered, this is the cause. The only solutions are raise the vehicle to stock height, or install camber plates on the top of the struts at the front and eccentric bushes or camber adjusters on the rear trailing arms and then go for a wheel alignment (these addons provide the adjustment you don't get on a stock e30).
Or you can just put up with it like many people.
If it is caused by accident damage it may be able to be repaired - talk to a body shop.
If it is caused by suspension wear or damage, isolate the problem and repair. Look at things in this order:
Control arem bushes, control arm ball joints, control arm itself, strut tops.
Good luck.