Excuse the formatting

alt.fan.usenet

alt.folklore.computers

alt.privacy

comp.infosystems.gemini

comp.infosystems.gopher

comp.lang.misc

comp.misc

comp.mobile.android

rec.arts.sf.written

comp.os.linux

comp.os.linux.misc

comp.sys.raspberry-pi

news.software.readers

rec.autos.sport.f1

sci.astro

sci.physics.research

rec.food.cooking

rec.arts.sf.written

sci.crypt

misc.test

news.software.nntp

rec.arts.drwho

comp.ai

alt.comp.os.windows-10

alt.comp.os.windows-11

sci.logic

comp.language.python

rec.radio.amateur.*

uk.radio.amateur.*

rec.woodworking

rec.arts.sf.tv

alt.culture.usenet

free.usenet

talk.politics.guns

soc.culture.usa

alt.arts.poetry.comments

A good search feature on a client will hopefully find you communities too based on keywords in posts