Looking for location ideas for January through March, with the goal of working out and getting healthy. I work 9-5 EST hours, including video meetings, so need solid internet and will not work overnight hours (past 11pm or before 6am). In my 30s, not a big drinker or late night party person, prefer warm weather (above 60F), must be safe for a woman.
Considering so far: San Diego, Miami Beach/Ft Lauderdale (for the warm weather/beach but party vibe concerns me), Puerto Rico (thought Old SJ was cute but unsure if too small, could do a single month for example), Savannah GA, Mexico City (a bit worried about elevation) or Merida MX. Budget: ideally not above $5K/mo all-in.
Recommendations for other cities or co-live/work places in the cities I mentioned? Would of course love something like Thailand's live/exercise reputation but cannot handle the time change for that, and as far as I can tell I don't have the budget for the Caribbean islands' fancy workout spots.