The reason you made new suits is because... you want your fights to at least be somewhat difficult and not be easily won
Also unlike your previous armors you can switch between any of these suits thanks to a watch you and Ultron made which allows any of your suits to appear on you whenever you want it to
Name: speeding bolt
Unlike any of Tony's other armors the speeding bolt armor priorities speed over everything and only that. At its normal speed the suit is able to fly barley as fast as light and at its fastest it can travel around the world multiple times in a few minutes but this wouldn't have been done thanks to the power stone granting the suit near limitless power to use and the other stones being used to grant it more speed
Ability:to make this suit even faster then it was before you and Ultron were able to make it so that the suit can absorb kinetic energy and use it to give it more speed
Name: world smasher
This suit unlike your thanos buster suit uses the stones to increase its striking power significantly while also greatly increasing its durability
Ability:with every hit the suit takes the damage is added to its strikes making it one of the only suits that can truly equal the Incredible Hulk no matter how angry he is
Name: warhead
This suit unlike previous models ONLY relies on range and only that making it have every dangerous weapon known to man
Repulser blasts:lasers that are fired from the hands
Mini missles:self explanatory
Mini gun:a mini gun that will fire a never ending barrage of bullets at whoever your firing at
Uni cannon:basically LOTS of repulser blasts being fired at once and is basically death to whoever is infront of it
Twin chain guns, a box rocket launcher, flamethrowers, pulse cannons it has it all
Name:blade master
This suit unlike other models can't fly, fire repulser blasts or anything but it can make a endless amount of weapon's ranging from katanas to electric whips and it can use its thrusters for extra speed
Ability:with Ultron's help the suit is able to use Nano-machines to make any melee weapon you desire
Name:starks eye
This is a satellite you made with the help of Ultron and a couple of your suits. Unlike other satellites this one is able to fire a repulser blast that is stronger then all of the world's nukes combined and it can also fire nukes and missiles from orbit that will reach the ground in a batter of seconds also the satellite can also turn into a giant suit Ultron himself can use but he will only use it when you give him the right to do so
(I will add in more things later on anyway tell me what do you think)