Great post by Thruth.Depends on how big or small you are and the width of your lapels. Tie and lapels should be close in width. Not exactly the same is fine. quarter inch +/-
3 inches is on the slim side for regular folks unless you are an Ivy acolyte where you might select a 2 7/8 (check out Ask Andy and some of the specific widths quoted) or a 3, "although Drakes is flogging 7cm ties which tie makers will cheat up and call a 3" inch tie. 3.25" (8cm) is skinny for some but Brooks Brothers classic lapels match this. 3.5" - 3.75" is iGent comfort zone. 9 to 9.5 cm.
I'm 6", wear a 44" jacket and prefer reasonably wide lapels. I also prefer a tie that's 3.5 - 3.75" in width as otherwise I find they just look too narrow in comparison to my lapels and my general width.
There certainly are bespoke tie makers - some dodgy, some not.
For good off-the-rack ties that are decently wide, try E. Marinella or E.G. Capelli. Capelli has an online store and as well as off-the-rack, I think he will also customise ties on request:
I don't know whether they still do, but Brooks Brothers used to make good ties that were a decent width, all made in their factory in New York. You can often pick them up on eBay cheaply.
Vanda do both off-the-rack ties and made-to-order ties - as they only make the tie when you order, you can request a specific length and width. Note that Vanda prefer a thin lining and no back "keeper" - some people like that, some don't. They do tie a fantastic knot.
Sam Hober makes only made-to-order ties and has a good reputation.