The only cases I soak to clean are those I shoot with BP or BP substitute.
A necessary step for those type of loads.
The dry media cleaner is so much easier & efficient for smokeless fired cases.
If you do decide to clean them by soaking,,,add a bit of lead shot to the mix,,(any convenient size will do but #8 or #9 seem to work best for me).
I just use water and laundry detergent but the newer organic cleaners get high praise lately and keep the greeny weenys happy.
Agitage the mess in a plastic container for a few minutes and the shot will knock off any hard to remove dirt, carbon, etc that a normal soaking won't.
Remove the cases, strain the shot out and reuse the next time.
Cases won't be shiney bright like a tumbler, but will be clean inside and out.
Yes drying them can be a pain,,especially in the winter months.
I start with deprimed cases to allow them to drain & dry easier. Plus it allows the cleaning process to get at the primer pockets too.
Deprime in a larger cal die to avoid scaring your good one.
You can see why it's alot of work and the only reason I do it is for the BP type loads!
Vibratory or tumbler cleaner is really the way to go if you're going to do much volume.