Some beets taste more like dirt than others.
Cylindra and Touchstone Gold are 2 varieties that are milder and sweeter to my taste. Also, I think roasting them makes them stronger so I prefer to boil or steam them and serve them with salt and butter.
I've grown lots of vegetables for the fun of it that I don't grow anymore because I really don't like them, including radishes, turnips, okra, celeriac, kohlrabi, yellow beans, artichokes, bok choi and many other greens.