I need urgent help, can anyone recommend some good keyboard apps? Preferably ones with the arrow/directional and pageup/pagedown keys for Android?

 I've been managing with the on-screen mouse controlled keyboard for the past few days but rendering and typing with it has been mind breaking. 

I've already tried Chrome remote and while it's good for typing, it is impossible to render with. keyboards that need a Bluetooth connection on the other hand aren't working with my laptop for some reason.