If you want a 50, not something close, etc, there are only two choices in my not so humble opinion...
The Sony 50mm f/1.2 GM is among the finest lenses available in the Sony world. It's a lifetime purchase.
The Voightlander 50mm f/2 APO-Lanthar is half the weight, half the price and as good or even better optically. It's manual focus, for you that may be a deal breaker.
For people, events, or when I just feel like it, I use the 50 f/1.2. In the landscape, for slower more contemplative work, the APO cannot be surpassed. I'm old enough to remember the days before autofocus (not always fondly for photographing
moving children). Now, for anything that might move, autofocus is essential for my aging eyes.
Yes, the other posters here have good suggestions but I'm trying to keep it simple.
