The safest places may currently be the coldest, post polar shift the coldest may be the warmest with the densest atmosphere. The new equator may run through the current poles, therefore an earlier referenced video regarding the projected new equator location may be incorrect. Many suggest a means of creating off grid power to generate heat and oxygen if necessary. oxygenators and or climber / canned oxegen may be necessary until ones body adjusts, since a weekend magnetic filed may equate to a less pressurized atmosphere. in other words there may be less oxygen per breath.
The video below actually aligns with past research that I had completed independently, it is very interesting to see others arriving at similar conclusions.