I look for tags that describe the lot or sim. Where it's built is helpful too. #bowlingalley , #laundromat , #osasissprings. #celebrity , #goth
For description it's helpful to describe details that you can't see from photos. Include your vision and back story for the lot/sim if you can.
There are ways to make your uploads more eyecatching with custom CAS poses and changing gallery photos. You can Google how to do so. The community has mixed feelings about these sort of things. I personally don't like when people abuse hashtags using only what's popular to get noticed because it makes it harder to find what I need but that's another tactic.