零líng 0 bottom (because 0 looks like an opening)
一yī 1 top (because 1 looks like a beanis)
零líng点diǎn五wǔ (0.5) switch/vers (according to comments some use 0.2 or 0.7 to express degrees)

攻gōng dominant
受shòu submissive

熊xióng bear
猴hòu monkey - slim twink
浪láng wolf - slim but muscular, gym gays on social media

you can combine the above to describe subtypes like “熊0攻” would be bear powerbottom I think

直zhí女nü微wēi双shuāng - straight woman who is a little bisexual

牛níu cow - I can’t really tell from his innuendo, but it seems like comes a lot?
农nóng farmer - people who like cows I guess?

help me figure out those last two, BDSM gays of hexbear

I found a YouTube link in your post. Here are links to the same video on alternative frontends that protect your privacy:

• yewtu.be
• inv.nadeko.net
• yt.artemislena.eu
• piped.video