9mm pistol suggestion
Most people I train with end up with either a Glock or a 1911 after they shake out the problems with their original choices.
For a defensive pistol you do not want to skimp on quality. You want a pistol that professionals like police choose for their firearm.
Putting it in perspective, if you train regularly with your pistol you will quickly shoot more in amunition than the original cost of the pistol.
BTW – in addition to being an underpowered round, .380 costs more than 9mm.
My suggestion to you is to consider a Glock 9mm, either the G19 compact model or G17 regular size model.