I've tried Termux but use the old irssiconnectbot (https://github.com/irssiconnectbot/irssiconnectbot) but with slight modifications over the years since its open source... along with an also modified hackerkeyboard (https://github.com/klausw/hackerskeyboard) to support my workflow which is heavy on emacs and GNU Screen.

The colors/graphics seem to be better on irssi and can also handle all the emacs and gnu screen keyboard chords and escape sequences.

I try every android terminal but nobody is really thinking about running more than simple commands.