Options for integrated pointing device

Many years ago I had a ThinkPad and I had such a nice workflow using the track point. I had good precision without having to move my hands. Now I've moved to a split keyboard (kinesis freestyle edge currently) but I'm wanting to get something similar back.

What options exist for integrated pointing devices such as trackballs, track points, or touchpads? All I've seen is the UHKB and some 3d printed models.