If you like citrus, try gold nugget tangerine. It is very sweet with excellent sugar acid balance, it is perfect size for an individual serving and it peels easily.
Take a miracle fruit and make a Meyer Lemonade with no sugar, absolutely spectacular on a hot Summer day.
For a Blood orange, you may want to also consider Smith Red Valencia. It is supposed to be an actual Valencia but with the red pigmentation. Some nurseries are starting to carry it.
Simon