In the current market, do you sell first? Buy first? Or sell and buy at the same time? A lot depends on your financial situation and stamina for risk, disruption and chance.
If you sell first, as conservative traditionalists recommend, you’ll know precisely how much additional money you’ll have to spend, but it may take some time before you’re able to identify a suitable next home, so you may have to rent or move in with family in the interim. Don’t expect to be able to make your sale contingent on finding suitable housing.