...
10. Use these tutorials to help you create accessible charts and graphs
Much of the above info information comes from here (you’ll find live demos here, too): https://www.highcharts.com/blog/tutorials/best-chart-accessibility-practices/ (you’ll find live demos here, too).
To make page structure, menus, images, tables, forms and carousels more accessible:, see https://www.w3.org/WAI/tutorials/images/complex
...
Alternative text flow chart examples https://www.gov.uk/government/publications/fetal-anomaly-screening-care-pathways/fetal-anomaly-screening-programme-screening-pathway-for-downs-syndrome-edwards-syndrome-and-pataus-syndrome
https://accessabilly.com/accessible-content-part-5-accessible-graphics/ and
https://accessibility.psu.edu/images/flowcharts/
...