Both the T90 referenced above and the A-1 mentioned earlier are about the worst cameras you could go for in this case. Completely contrary to what's said above, the A-1 was one of the most automated cameras you could buy in 1977. The T90 is an expansion of the A-1's concept, including multiple metering modes (not available for the A-1) and an integrated motor drive (available as the Motor Drive MA accessory for the A-1).
But what none of them does very well is provide a good way to set exposure manually, while still having some support from the built in exposure meter. The later EOS cameras, on the other hand (not as old as an EOS 10, for example) all have an exposure meter scale in the viewfinder, which works similar to the match-needle system of the all-manual cameras, like an non-expanded F-1, FTb QL or AT-1.
The EOS 10 had just a +/- sign in the viewfinder, so it's a bit inferior from this aspect.
So my recommendation is for example an EOS 30. In the US, it was called the Elan 7e, for some reason. It's not expensive any longer, still a very good camera and well useful even when you get out of the class, and can use any mode you like, as you like.
Note: The A-1 supported automatic shutter and aperture (P), automatic aperture (Tv), automatic shutter (Av), automatic shutter with stopped down metering and automatic flash photography. Apart from that, you could also set both shutter and aperture manually. With stopped down metering you could do that while looking through the viewfinder, but with the lens fully open (normal state), you had to use the camera's meter as you would with an external meter. Or not meter at all, just guess.