Im the developer. A general category would be audio. Just a handful of the regular room operators...

nostr:nprofile1qqs9ywrudwvucs42c5v3dvyt0dga9wkalsvl9wsgmq4yssegf8dalvspzemhxue69uhhyetvv9ujumn0wd68ytnzv9hxgqgcwaehxw309aex2mrp0yh8xmn0wf6zuum0vd5kzmqpz4mhxue69uhkyetkduhxummnw3erztnrdaksfc9eyh - WalkTalk - to promote being active and not a doom scrolling slouch (somewhat daily)
nostr:nprofile1qqsfxg4ajghjp3hum853x328y7emhsksj6lysyvhzp26sfka502vkzckzc3cg - Wolves of Bitcoin - some trading commentary, economic opinions or even finance type focus (somewhat daily)
nostr:nprofile1qqs0n3xg5mke4nq8h7gea3nxd3hques58wjrjd0pddg4j4rdtkjnhgspr3mhxue69uhkummnw3ezucnfw33k76twv4ezuum0vd5kzmqpz3mhxue69uhhyetvv9ujumn0wd68ytnzvuq3samnwvaz7tmjv4kxz7fwwdhx7un59eek7cmfv9kqv55zn9 - Companions Corner - is a weekly book club where the group of participants takes turns reading and discuss (weekly)
nostr:nprofile1qqsqgq7gdgdmfnauxny2fylm68cdzkx59hgx6ql25deq3q4qvmf6x7qpremhxue69uhk7mred4cxjcmnxgcrydpwdehhxtnnda3kjctv9uq32amnwvaz7tmjv4kxz7fwv3sk6atn9e5k7tcppemhxue69uhkummn9ekx7mp0vf3fqg - Global Sports Central room is a weekly recap covering the highlights and drama of the sports world (weekly)
nostr:nprofile1qqsrgeg6jwfdxjle6pjw88euzzlw7a94u288zrq8xfp30d58cj4a06qprpmhxue69uhkwun0w4c8xt3s0p3ksct59e3k7mf0qywhwumn8ghj7mn0wd68ytnzd96xxmmfdejhytnnda3kjctv9uq3samnwvaz7tmwdaehgu3wvekhgtnhd9azucnf0ghsdrnp6y - Cosa Nostr is a room of topical general discussion and assistance with nostr in Portuguese (somewhat daily) 

 And people can follow nostr:nprofile1qqsv83ejztakekydrtxp3a5yn3nqc34re9et7knkd3vn35rynlwuklqppemhxue69uhkummn9ekx7mp0daxlja to have public room announcements in their feed 

 Need to see how to add. Because it need to be very simple to understand :) @Corny Chat would be the to go source where they find more. So will add it too audio