Another option, especially if you’re not one to continue to wear more formal/dress clothes, is to buy a cheap suit (used/thrift/cheap from like Kohls or something) that generally fits you (something a bit big is fine vs something too small) and then pay a tailor to do alterations so it fits you really well. If you’re not going to need a suit for more than just your wedding or a few weddings/events in the future, this might be your best cheapest option vs buying something new that you’ll only wear once.