Looking to Purchase Magnification Loupes

Don’t know where to start for purchasing magnification glasses. I currently use the clip on style and they work ok but i’m looking to improve better magnification.

Does anyone know of a good place to start? I went online and the proces are all out there. I went to my dentist for a referral but I realized that I want the ones that are not fixed to the lenses. I believe I would need a 2.5x magnification. Any suggestions I would appreciate.

Carl Zeiss I think are great and I purchased mine from Instantron. I hear some members now saying that they use microscopes, I would love to know more about these, especially from someone who has used both.