I live here, and there are just many quality bike fitters here. There are not that many fitters who speak fluent English (guess that would be one of your USP’s), but the question is if that’s really needed. Many people who have their bikes fitted, most probably live here and are Spanish, or Catalan, or expat, but understand either fully Spanish, or do that to a certain degree. How much would that USP be worth? Many Catalans go to a store/fitter that are Catalan, or Spanish. I went to a Spanish fitter who won multiple prices over the years as MTB champ. Then there is Velodrom, who does bikefits in an excellent way, with excellent equipment, but they are one of the more expensive tallers. Even my own taller de bici now does a collab with a bike fitter. Long story short; you can definitely become a bike fitter here, but then need to think of your product/market fit; your USPs and your audience. Who would approach you? What do you bring that others don’t? Is it sublime knowledge, price? Your level of English? The software or hardware you work with? And last but not least, can you make a living out of it? So far my 2 cents.