Looking for reputable places to shop

Hello all! I’ve recently decided to put a lot more care and consideration in how I present myself, and part of that is, of course, how I dress. I’ve found this clothing style I really like (though I don’t really know if there’s a particular term to describe it) and would like to know if anyone knows of safe websites to shop on that would carry items like the ones shown in the pictures I’ve included. 1:1 clothing matches are not at all necessary, I just would like similar pieces. Cheers!