I've met some really great people from HackerNews meetups in London and Tokyo. I'm sure some are in Taiwan/Taipei too!
I've found it hard to find "hackers" or even "makers" to exchanges ideas. Most of the meetups here are often too "sales" or interesting ones might be only in Chinese.
Please reach me by email if interested! I'm sure we can start something!
AFAIK, there are many tech meetups in Taipei. I myself am a system guy, so I can say that CAT wrokshop (compiler, OS, blockchain, virtualization) and TLKH (Taiwan Linux Kernel Hackers) are good. Both community accept English speakers and the people can interact with foreigner speakers, but it would be a little bit difficult, but not impossible, for them to organize English-based events.
Besides, there are Taipei Devops meetups, Rust meetups, ...
If you are a Web/Framework guy, I am sure there are more meetups than I can tell.
Last but not least, welcome to Taiwan!