There are keyboards which provide more keys and layouts which can help (but take up more screen space).

Hackers keyboard was great, the replacement appears to be unexpected keyboard.

f-droid.org/packages/juloo.keyboard2

Remember a keyboard can steal all your info like passwords and usernames - make sure you trust it!

Or a flip keyboard like this is cool too.
Image

www.ebay.co.uk/itm/266795334818