My Kingdom for a dead eye three point shooter.
Available options for small assets and age limit 30:
Others who may well be available for trade, but could cost us a package:
Kelly Oubre Jr.
I would inquire about McCollum and Kennard. If Portland finally decides to break up their core I would be interested to get McCollum for a package that doesn't include Tatum, Brown, Timelord or even Smart. Kennard is worth a first rounder, but I have no idea how Clippers management views him. Joe Harris is interesting, but I worry about that ankle injury.
Cheap options I like are both Fournier and Muscala. Get a second round pick for Schröder and move it to OKC for Muscala and getting Fournier back via his own TPE would be funny as heck. Just adding two experienced shooters to the rotation would help a ton.