I've shot about 2 thousand raw photos that are burning a hole in my MBP's SSD. I need advice on what to use to clean this pile up and make them beautiful.
You need quite a few things...
1) Software to organize the library. Some day you will have 20,000 images or more. You need to be abler to find them ten or 15 years later
2) Software to do light edits like crop and color balance and do minor corrections
3) Storage to hold all the images (some kind of big disk or NAS)
4) A backup system. Likely a local backup like Time Machine and some kind of off site system. (I would add a third redundant one as well.)
Adobe LightRoom can do both #1 and #2. I was a big fan of Apple's Aperture until Apple discontinued it.
#3 and #4 are very important too
If you do buy a big disk look at the rate of growth of your data and buy a disk that will still only by about 2/3 full after three years. Figure a 3 year life span and just replace it before it fails.