Dragon Ball

Sweet

Primarily a Kuririn x #18 doujnshi (including a family visit from #17!). Additionally includes a short Gohan X Videl story, and two Vegeta x Bulma 1-pagers.

Dry eye

Future Trunks story about his childhood, including Bulma, Gohan, other future characters. No romance: introspective story that fills in some blanks in the Future Trunks and Future Gohan story.

Curu Curu Milk

This is set in the GT Era but features a lot of the typical pairings by Kame House (Vegeta x Bulma, Lunch x Tenshinhan, Gohan x Videl, Goku x Chichi, #18 x Kuririn/Krillin). Also Trunks x Pan (possibly? could just be because they were in GT), Teenage Bura, Teenage Marron, and Long-haired #17.

Blue Moon Stone

Oyaji Books #13. This is a doujinshi about #17 and #18's relationship and how they go their own ways after she ends up with Krillin (Kuririn). It's a lovely contemplative doujinshi with beautiful art.

King of Toppatsu

This is an early Dragonball doujinshi from 1992. It features a lot about Future Trunks (and his dynamics in the "present" with his Father and with Gohan). As far as romance goes, there's a story about Bardock x Goku's Mother. As this was prior to the new interpretation by Toriyama, she looks slightly different from her new look. However, mature romance. Recommended!!!