AnySoftKeyboard has been my keyboard for years. Never felt like hopping to any other board.
FOSS for Android
### About /m/FOSSdroid A community for sharing and promoting free / libre and open source software on the Android platform. This means software you are free to modify and distribute, such as applications licensed under the GNU General Public License, BSD license, MIT license, Apache license, etc. and software that isn't designed to restrict you in any way. Think of free software as free as in freedom of speech, not free beer.
AnySoftKeyboard is really nice for something out of F-Droid. Nice looking and customizable. https://github.com/AnySoftKeyboard/AnySoftKeyboard
I'm currently usibg florisboard, but looking at the github, it seems pretty dead, so I'll probably switch to something else if I run into problems.
Oof, you're right. Guess I'll stick with OpenBoard then because predictive text is pretty important to me.
Simple Keyboard
Thumbkey
I've tried to use this,but i prefer the qwerty comfort of the aosp keyboard xD Props to you though