JMO, and possibly unpopular - we'll see:
Get the Adobe Photography bundle and be done with it.
Or, spend a bunch of time messing around with other things, only to arrive at that conclusion anyway, realizing that the subscription fee, equivalent to one premium streaming service, is totally worth it for a full-featured photo editor and organizer with a huge community and tons of online resources and great extensions and a terabyte of online storage.
For $20, you get Lightroom Classic, Cloud and Photoshop. LRC and PS are already doing amazing things with generative AI, including cloud replacements.
The only thing we know is that you have photos, and you want to sell them.
You'll really need to provide a lot more information if you expect any serious, helpful response. Like, for starters: photos of what, exactly?