Use Them After a Launcher

Another common method is to input the super after using a launcher or Vanishing Attack. Many Rush Supers start fast, meaning you can follow and catch up to the opponent as they’re still being knocked back. The big caveat here is that it can be ruined if they recover fast enough. Be wise about which launchers, as well as which supers, you use.
Taking the above into consideration, another idea is to launch them towards the ground and use a super as they make contact. These attacks can hit a grounded opponent, albeit at reduced damage. The other possibility is that they recover from the ground hit but don’t have enough time to dodge or counter.