He is what I have
50mm f1.4
70-300mm
What I want
12mm fisheye
upgrade to my 70-300 daughter is starting softball so would be nice to have a good quality lens
something with some range 24-70,16-35
A nice lens for portraits
Dream lenses
Sigma 35mm art
Tamron SP 15-30mm f/2.8
There is the new 70-300 SSM G2.... but that might be a good chance to get the G1 version used. Prices should drop as the new version comes out.
The Tamron 70-300 is also very good.
Though my favorite for telephoto was the Minolta 200/2.8. Sure, you are losing the 300 range. But gaining 2.8, absolutely amazing IQ, in a compact body. I used it extensively for little league. (And I want to get the new Nikon 300/4).
Range: The Tamron 24-70/2.8 is the most bang for the buck for premium. But there is nothing really wrong with the Sony 28-75 (except not wide enough), and the Tamron 28-75 (same lens, without SAM). Also take a look at the Minolta 28-135, the "secret handshake" gets very good reviews.
Portraits: 3 prime recommendations:
The Sony 85/2.8 SAM -- Very very good, compact, under $200.
The Minolta 100/2.8 -- EXCEPTIONAL... also a macro lens, around $300. Old screw drive is the downside. But you will have zero complaints optically.
The Minolta 135/2.8 -- Around $300. I find this lens a bit overrated. But it is good, and the 135mm is a great length for headshots on full frame.
Truthfully, I'd go with the Minolta 100 and never look back.