2 of the best and easiest.. bar none
...
When you go to any gun store, and you want ease of dissassembly, inspection, cleaning, and reassembly, along with, great DA/SA triggers out of the box, not to mention, accuracy, I'd strongly suggest Sig P229 9mm or Beretta Px4 9mm.
Both very soft recoil shooters, both SO easy to take care of, as mentioned above.
IF you can't find a range that rents guns, "then" it should go to the gun that feels the best, most natural, in your grip/hand, and balanced, picking up gun, point to aim, that feels most like it is part of your hand/arm and balance, whatever make or model that, part, turns out to be..
Price will vary:
Sigs: 229 or slightly bigger model 226 come with real night sights, mostly, great CS dept if warranty needed or up the road, replacement parts, extras, etc. 800 - 900 bucks. (decocker-only) no safety, but that will, should, be between your ears (being trained "right")
Beretta Px4 9mm: Usually without night sights, but there are some out there with them from the factory.. 500 - 650 bucks. Comes in F model, decocker and safety, in one, or G model, decocker only.
Either model mentioned will "last a lifetime" and just get better and better over time and rounds fired. But both are the_simplest, easiest, guns to take care of, bar none, out there, speaking from experience, and both are "very forgiving" of one handed shots or weak handed shots, as, they both keep on firing and are not effected by limp-wristing FTVMP.
Sig P229R and 229n/r (non-railed)
Beretta Px4
Just remember, prices are nothing short of a "lifetime investment".. so go with what you can afford, given the choice, based on "the_best, most natural, balanced, feel" of, whichever, said gun "you" choose.
Luck,
Ls
Ps.. welcome to the_boards