simplified `docker exec -it <some_container> bash` to a alias function in bash

docker exec alias

GREEN='\033[0;32m'
NC='\033[0m' # No Color

function goto() {
  program="bash"
  if [ -n "$2" ]
    then
    program="$2"
  fi
  if [ $(docker ps -q --filter "name=$1" | wc -l) -gt 1  ]
    then
    echo "too many containers exists with this name !"
  elif [ $(docker ps -q --filter "name=$1" | wc -l) -lt 1 ]
    then
    echo "no container found !"
  else
    echo "We are going to this container => ${GREEN}" $(docker ps -q --filter "name=$1" --format '{{.Names}}') "${NC}"
    docker exec -it $(docker ps -q --filter "name=$1") $program
  fi
}

1- Add this function to end of your .bashrc file (or .zshrc or others)
2- run source ~/.bashrc
3- use goto <part_of_the_name_of_container>

NOTE: this command use bash as default command but you can use sh or something else as second parameter like this:
goto <part_of_the_name_of_container> sh