You can use this automated script to install lots of useful software: https://gist.github.com/vanyasem/3541a877ea34569071a3d71e06da8eda
Name - Source - Description
Accessories:
Shutter - AppCenter - Screenshot tool (Clip2net / ShareX alternative)
Games:
Mines - AppCenter - Minesweeper
AisleRiot Solitare - AppCenter - Solitare
Graphics:
Peek - https://github.com/peek/peek - Record screen in GIF format (Clip2net / ShareX alternative)
Gimp - AppCenter - Image editor (Photoshop alternative)
Darktable - AppCenter - Photo editor (Lightroom alternative)
Inkscape - AppCenter - Vector editor (Illustrator alternative)
Internet:
qBittorrent - ? - Powerful BitTorrent client (uTorrent alternative)
Torrential - AppCenter - Native BitTorrent client (uTorrent alternative)
FileZilla - AppCenter - FTP client (Total Commander alternative) P.S. you can use Files to access FTP, but FileZilla is more powerful
MellowPlayer - ? - Native integration of music streaming services
Office:
WPS Office - http://wps.com - PROPRIETARY Office tools (Microsoft Office alternative)
LibreOffice - AppCenter - Office tools (Microsoft Office alternative)
NixNote2 - https://github.com/baumgarr/nixnote2 - Evernote client
Sound & video:
Audacity - AppCenter - Audio recorder / editor (Audition / Sound Forge alternative)
Kdenlive - AppCenter - Video editor (Premiere / Vegas Pro alternative)
Sound Recorder - AppCenter - Voice memos recorder
Kazam - AppCenter - Screen recorder (Bandicam alternative)
Vocal - AppCenter - Podcasts (iTunes Podcasts alternative)
System:
BleachBit - AppCenter - Crap cleaner (CCleaner alternative)
Image Burner - AppCenter - Image Burner (Rufus alternative)
Eddy - AppCenter - Deb installer (Double-click install)
Other:
Autoscroll - https://goo.gl/dtIX7v - Middle click scrolling in browsers