The Sony a6000 is the only camera I have any experience with, but it's an excellent, highly regarded camera that's great for beginners. The lens that comes with it is a great all around lens. That's mostly all I did last summer was outdoor stuff at state parks.
You can get the Adobe Lightroom/Photoshop package for I think $10 a month, but there's also a lot of free programs out there. Lightroom has a bit of a learning curve, but once you get the hang of it, it's second nature. YouTube videos can help get started on learning how the file system organization works. The rest is really just playing around with sliders and the few tools in there. Photoshop is a very steep learning curve, but things like removing objects from your pictures are pretty easy once you get the steps down.
I don't know how much you wanna spend, if anything. I found out quickly that it's an expensive hobby with a lot to learn. You can take great pictures with just a smart phone, you just can't do a lot of the deeper stuff like long exposure shots and you can't shoot in RAW format, which gives you MANY more options in editing because the camera takes in much more information.