Foundler - Online hackathon weekends. Attend every other week.
Coopz - Coopz: Dating app, Find friends & Meet new people app provides features through which users can discover like-minded people to hang out with.
HackHub - Host tech events and hackathons with ease 👨💻🛠
ChatBud - ChatBud app offers features that let you have chat sessions with strangers so you can make new friends.
Confs.tech - Open source list of tech conferences: JS / Ruby / Data etc.
Vistar - Vistar – Live Video Chat & Make Friends app allows users to enjoy video and voice chatting with their friends and family members right through their mobile phones.