In-general the most recent version of Maya is going to be the more error-prone, at the moment 2020 is the newest. If you can, I'd suggest working in 2019 (I know it's strange).
If that's not an option then the best that you can do is report the crashes to Autodesk when they happen.
If you can reproduce a crash (find out what set of actions cause it) then you can post here and people might be able to help more. But unfortunatly there's no magic bullet to fix crashes in 2020 or any version.
