What do y'all do with your photos after shooting? Do you just delete them?

quite literally just started out and have been taking photos of friends and family and stuff and I have hella photos I don't want taking up space but a lot of them I want to keep around somewhere to look back on. I have a Nikon so I use snap bridge to switch over to my phone but that's about all I got going so far.

any tips and advice would be greatly appreciated