If you google “alternative to _____” you normally will get a website that lists good alternative software.
You’re looking for a RAW editor and organizer, and there are a bunch out there. For free there’s Darktable and RawTherapee, and if you’re just a hobbyist, that’s a great place to start, I prefer RawTherapee personally.
But for paid software, which may be necessary for some people, there are a couple. I landed on Capture One because of all the non-Adobe options, it’s the only one that had support for Tethering, which was a feature I needed. It’s probably the most full-featured competitor to Lightroom, and it does most things as good or better than LR, but it’s also a pretty expensive program in the category. I’d only go there if I was an advanced amateur and have a need for the power.
I’m sure mirrorless is different, but traditional AF can be finicky. Additionally, I use my camera tethered most of the time and it is the first Generation Canon DPAF, and sometimes it just doesn’t want to focus, and since my lens is STM and doesn’t have full-time manual, I have to switch it to MF on a fairly frequent basis.