There have been lots of threads on this topic, so I'd suggest doing a search if you haven't already.

My own personal preference is for the Speer 135gr SB-GDHP +P. It performs well in my gun and has established a good track record in actual shootings. Look for the 50-round boxes for the best value. They're produced in cycles so availability can be spotty. It's best to get on the e-mail list for a good online vendor so you can be notified when they're in stock.

A close second would be the FBI load, i.e. 158gr LHP or LSWCHP +P. My preferred version is Buffalo Bore's standard pressure load (it actually has the same velocity as other makers' +P versions). The FBI load, in general, has also established a good track record in actual shootings.

In general, I prefer medium-to-heavy HP bullets. In .38 Special that'd be 125-158gr. Terminal ballistics are an important consideration, but not as important as your ability to get good, quick hits on target.

Just my opinion.