I’ve been using thread.com a bit recently.
You put in your sizes (which in my case constrain where I can shop), then pick a variety of ‘looks’ and brands that you like and they aggregate a load of other sites and show them to you. Or you can do normal searches as well. Allegedly it learns your style.
They have some reasonable discounts too.
If anyone fancies it I can refer you at which point I get £20 which I will happily split with you.
PS I sound a bit like I’m shilling for them but it is quite good if you’re lazy.