I organize meetups and co-oganize conference in the Czech Republic in https://pehapkari.cz/
I have also experience with speaking at international meetups and conferences. For my references, see:
Tomas loves PHP and connecting people, so he founded Czech & Slovak PHP Community [Pehapkari](https://pehapkari.cz) in 2015, where all PHP developers can share their knowledge, chat on Slack or grab a beer.
His **passion is open-source for lazy people** - instant upgrades and coding standards. He takes care of [Rector](https://github.com/rectorphp/rector) and [EasyCodingStandard](https://github.com/Symplify/EasyCodingStandard) packages.