Where do you go for Wedding Suits?

Getting married Summer 2024 and it's doing my head in with all these different styles of suits. I haven't worn one since my debs and I'll be honest, I was swimming in that one.

Some threads recommended getting a nice enough one from Marks and Spencer and then paying for it to be tailored, but they were 6yrs old so I can't comment on them. Has anyone done this?

Or does anyone have a good recommendation for where I could try a few nice ones on?

Budget definitely under $1000, but nicer than Penneys men's section, cheers