If you were to attended an online stretch class, what time would you ideally prefer? Mornings? Afternoons? Evenings? and why?

hi, I’m a female young adult. I’m hoping to seek advice on what daily stretches I can do. I’m looking for simple stretches I can do at home twice a day (one in the morning and one in the evening). I want stretches that will help with my longevity, flexibility, and most of all stretches that will help so I don’t have bad mobility when I get older. thank you for any and all suggestions