Call the good tailor/seamstress and ask what types of alterations they do. If they do your type of alterations, make an appointment. At the appointment, bring in only one item you want altered. You’re testing them to determine if they’re right for you. You have to feel comfortable around them because you’ll be seeing them every time you buy new clothes. If you feel comfortable with them, then bring in more clothes to alter. If not, then look for someone else until you find the right person.