We have choosen to take i3 next gap from airblader. It provides you with the same standard i3 but with the possibility to have gaps between the windows. IF you do not like these gaps then you make your gaps 0 and you will have the regular i3.

Change the setting in ~/.config/i3/config at the bottom.

gaps inner and gaps outer

We check out what smart gaps are.

And we use one of the scripts to make the gaps bigger or smaller.