In the US, the Americans with Disabilities Act (ADA) facilitates tons of lawsuits against websites that are not accessible: https://www.rjo.com/publications/website-accessibility-lawsuits-continue-to-inundate-california-courts-despite-covid-19/
Typically, in website accessibility lawsuits, a visually impaired Plaintiff will allege that a company’s website is inaccessible and incompatible with screen-reading software such that the individual is denied full and equal access to the company’s website in violation of the ADA and the Unruh Act. In these cases, a Plaintiff will seek statutory damages, injunctive relief, and attorney’s fees both individually and on behalf of a class of persons similarly situated. Plaintiffs have been testing this theory of ADA liability in courts across the country for years, with New York, Florida and California being the most active.
Edit: here's another good link showing a graph of the number of ADA website accessibility lawsuits from 2016 to 2025: https://www.ecomback.com/annual-2025-ada-website-accessibility-lawsuit-report