given that futanari refers to the merging of the two genitals, boobs are irrelevant to the term. I do agree that having the dickgirl tags renamed to futanari would be helpful tho. the tag you're suggesting merging I think is intended for non-futa dickgirls tho, so it should be renamed rather than merged
Futanari: vagina and dick. Balls optional
Full-packaged futanari: vagina, dick and balls.
Shemale: girl with dick and explicitly no vagina. Balls optional.
Dickgirl: any girl with a dick
Futanari and dickgirl should be seperate tages, as they can be divided into two easy categories. Futa's have vaginas and Dickgirls are just the dicks(nuts optional just like Futa). For another reason some argue that Futanari is a fantasy fetish as they have both gentials while dickgirls are more transgender or intersex characters