To browse the smallnet you should just point your gemini or gopher client to
the corresponding gemini/gopher server. This is like you would do for the web,
only you don't have google ;)
For instance, try to start from:
gemini://soviet.circumlunar.space
gopher://soviet.circumlunar.space
where you will find pointers to other people's gopherholes/capsules.
For gopher phlogs, you can try one of the aggregators, e.g.:
gopher://gopher.black/1/moku-pona/ gopher://i-logout.cz/1/bongusta
or have a look at SDF gopherholes:
gopher://sdf.org/1/phlogs
or Bitreich lawn:
gopher://bitreich.org/1/lawn
To be fair, there exist also some gemini search engines:
gemini://gus.guru/
gemini://houston.coder.town/
and some gopher search engines:
gopher://gopher.floodgap.com/7/v2/vs (Veronica)
gopher://forthworks.com/1/contrition (Contrition)