On a whim I decided to check out the new Canon 50mm ƒ1.8 STM lens, which sells for $125 new. Paired with the Metabones Smart adapter it makes a relatively compact normal setup. As usual with the Metabones, the autofocus is slow, but the lens is remarkably good (especially considering its price). It is quite sharp, even wide open, and has decent bokeh.
If you're looking for a cheap normal lens, and you already own an adapter, you might consider it.
Canon 50mm ƒ1.8 STM on Sony A7ii @ ƒ9.0
Canon 50mm ƒ1.8 STM on Sony A7ii @ ƒ1.8