The call for talks for Meeting C++ 2018 is open until June 10th:

Submit your talk to Meeting C++ 2018!

by Jens Weller

From the article:

This year its the 7th edition of Meeting C++, the 2nd time that it spans 3 days!

Speaking at Meeting C++ is a fun experience, you get to attend the speakers dinner, attend the full conference for free and enjoy the luxurious Hotelrooms the Andels offers from Wednesday to Saturday! You can look at last years schedule to get a feel for what your competition might talk about, but have in mind that you don't see the talks that were not submitted! If you want to talk about a C++ topic that wasn't covered yet, or have a unique idea for your talk, please submit!

Start speaking!

Meeting C++ encourages you to start speaking about C++, as we all like to hear more and different voices and opinions on the wide range that C++ has become since C++11. Thats why Meeting C++ has a track that is dedicated to new speakers! If this is of interest to you, please read Jon Kalbs blog post on Developing Talk Ideas, additional information on speaking and slide design is available in the speaking guidelines of Meeting C++! You'll find help with your talk in the C++ slack under #speakerscorner.

Also you can submit talks on embedded to Meeting Embedded 2018!