FINAL CUT PRO:
Let me be clear. Premier has always been garbage—today as a buggy mess and back when FCP originally launched and ate its lunch. It's only advantage is the Adobe ecosystem (which is a big advantage). FCP is fast, gets out of your way, hardly crashes, and, if it does, you never lose your work. I've been using it over a decade. I paid $300 for it, ONCE, and have received updates ever since.
DAVINCI RESOLVE:
The multi-platform king. Personally, I don't like the NLE built into DaVinci, but I haven't invested much time in getting familiar with it either. DaVinci is the THE standard in color grading and it has an entire Adobe ecosystem replacement in one app (color, sound, sfx, cutting, finishing). It is FREE to use and only paywalls 4K exports and its more advanced plugins. If you want to learn video post-production, start here. When you're ready to level up: $295