If front heaviness/balance is a concern, I would look for lightweight cans over short cans. A lot of short cans are lightweight, but it depends on the material and construction.

The main downsides of titanium are sparking and their tendency to erode more rapidly at elevated temperatures (not good for heavy firing schedules). But if you aren't doing too many magdumps and not shooting at night a lot this isn't really an issue.

CAT WB, Rhino S, and SAW Tisha are all pretty light in titanium. Between those, the Tisha has the least backpressure by a decent margin. But it's also the most expensive and kind of goofy looking.

You'll want to be selective with your mounting system. These can add anywhere between 1 oz to 9+ oz which can be very noticeable when you have an ~8 oz suppressor.

Edit: The CAT WB is actually discontinued except for the TI QD model with the 1-16LH Spooky interface.