@imtaciturn if you want to try some green tea, milky oolong is a good idea (this comic sure knows the way). just be sure to follow the instructions and use not too hot water.
if you've never tried loose black tea i would recommend you to try some anyway as it's definetly a totally different experience compared to teabags. with a darjeeling or an assam you'd go for a really neutral choice, if you find a dimbula you'll get a sweeter and lighter but also pretty interesting black tea.
otherwise you could go for some flavoured black teas, with fruits, spices or flowers added: there the choice depends a lot on your own tastes, but blackcurrant, wild berries or other types of fruit could be a starter. if you want to go for spiced tea, then definetly masala chai, you can drink it just black or with milk.
tbh if you like citruses, earl grey can also be a good investment. it's one of the most famous and recognizable blends
hope this wall of text can help you xD