The fact of the matter is HDR is not that easy on D3300 as it is being made out to be if you want professional level results in your pictures. But if you do it right there is no other camera like D3300 for HDR shoots. I use HDR for a few real estate interior shots and there are lots of settings that you have to change to make it good.
First, use a unshakeable tripod. There is no point in getting some cheap tripod for HDR. The auto align on Lightroom is not good enough. And manual alignment can change other parameters.
Second, make ISO manual at 200 to get noise-free images on D3300.
Third, though most people would say take the pictures on aperture priority it is best to make all the adjustments on manual mode. In real estate the contrast between highlights and shadows can be so stark that you might have to take 10 shots to get a good HDR. You may even use flash of various kinds to make the outcome good. D3300 will help you in getting exact focus even when in manual mode.
Fourth, switch off the D-Lighting facility on D3300 as it can manipulate the image automatically.
Fifth, make the focus and metering centre point so that you can gauge the exposure correctly.
Sixth, always shoot HDR pictures between f/8 and f/11 which will ensure your depth of field is large and everything is in focus beyond 4 meters till infinity. But beyond f/11 the pictures on D3300 can be a little substandard. But the real world is not that simple. You would have to take a few HDR shots at larger aperture just to get the entire dynamic range. Or even use speed lights.
Seventh, use a ND filter if you are shooting in very bright conditions so that you don't have to go beyond f/11. The only issue is that HDR pics are quite unpredictable and so it is best to download at site and check if the exposures have come good. Even without the ND filter the adjustments on the camera to get the right exposure can be nerve racking. I guess, there are still a few more small things that matter during HDR shoots which you will have to take care of.
Eighth, and most importantly, never go for a HDR shoot with a slow lens. For real estate it is imperative that you have lens of F/2.8 or faster. Most reviewers on internet who talk about lenses conveniently forget to tell you that a f/3.5 or f/4.5 lens should be thrown out of the window because at such small aperture you will end up taking every shot in HDR. That would mean that what other professional photographers would take a day to complete you would be struggling to get the project done in three or four days.