Originally Posted by ClydeClydeson

Generally speaking, 70 psi is plenty for 32mm tires, even for heavier riders. Just be sure to keep the tires pumped up to or lose to the max.

However, if you want something that can handle higher pressure, tires are a 'wear item' and need to be changed occasionally. This means there are two possibilities - you can buy some higher pressure 32mm tires now and keep the current tires as spares or to use in the future when you've lost some weight, or you can keep riding with the intent of wearing out the current tires as soon as possible then reward yourself for all the hard work by buying yourself a new pair of tires.

Some 32mm tires I know of that have higher pressure ratings are Conti Gran Prix (various versions - GP 5000, 4 season, etc) and Panaracer Paselas (also various versions - foldable or wire bead, lightweight or with flat protective layers) - all depending on what is available, and there are many options.