AirDroid - Access Android phone/tablet from computer remotely and securely. Manage SMS, files, photos and videos, WhatsApp, Line, WeChat and more on computer.
Handshaker - Manage Your Android Phones at Ease
Pushbullet - Pushbullet - Your devices working better together
KTimer - KTimer is a little tool to execute programs after some time.
Join by joaoapps - Join – Tasker and Join
KDE Connect - Integrate Android with the KDE Desktop