Bit of a hot take question, but are there any popular ships you don't like?
I try to be careful with this sort of thing- most of the time if I don't ship it I simply don't bring it up and, in some cases, I block the tag if it ends up in my feed a bunch. I essentially use "Not on My Lawn" rules rather than a ship DNI- essentially, don't bring it up in replies of stuff discussing other ships/interactions with those characters.
Anyway, to actually answer your question, a popular ship that baffles me is Bra/Bulla x Goten- I think I've seen it called "Broten". They have no real interactions (that's not the problem here), so the ship hinges on the kids of rivals (Goku and Vegeta) falling in love and preserving Saiyan genetics (as a hypothetical kid between two half-Saiyans would still be a half-Saiyan instead of a quarter-Saiyan).
The glaring issue, however, is that this ship ignores a roughly 13 year age gap between the two (Age 767 vs Age 780). By the time Bulla's 18, Goten is already in his 30s and I doubt he's waiting for her. Even without the year numbers available, the gap is obvious in pretty much any DB media with both of them in it (the ship's been around since before DBS- which literally features Bulla's actual birth- but even then there's clear evidence of the gap in End of Z and GT). Even aged up, I don't think the "they're both adults" justification can really work with Goten knowing Bulla as a child (when he himself was already growing into his teens).
The rivals' kids to lovers route has other combos through Truten (Trunks x Goten) and Bullpan (Bulla x Pan), but neither fill the second "purpose" of Broten, which is Saiyan genetic preservation. I don't understand the seeming fascination with trying to keep the Saiyan biology percentage from dropping (a phenomenon that has also prompted shipping Caulifla and Kale with happily married U7 Saiyans), but they don't realize that trying to accomplish this with U7 Saiyans alone can only work once before the family tree turns into a tangled shrub. Saiyan genes are also proven to be stubborn, as GT's epilogue shows Goku and Vegeta's descendants with very distinctive Saiyan spikes (in Vegeta Jr.'s case, impressively resisting Bulma's blue/purple hair genes) and the ability to turn Super Saiyan. In this scenario, Goku Jr. is 1/64 Saiyan and Vegeta Jr. is likely the same or close to it, so really the Saiyan percentage is really only an issue of a number on paper.
Broten also has a counterpart in Trupan (Trunks x Pan) which has the same rivals' kids dynamic and a reduction in Saiyan genetic loss (3/8 Saiyan vs 1/4 and 1/8), as well as the same exact issue I have with Broten- the exact 13 year gap (766 vs 779). However, you see Trupan shipped a lot less and more noses turned up at it for having the same issue as Broten because Pan is seen more as a "kid" despite being a year older than Bulla. Identical issues but I've only seen one get its due flack.
GT has done a lot of damage to Bulla's perception and overly "maturing" her between her highly cropped outfit and a scene showing her being hit on by guys who are older teens at youngest (a situation that is quickly and thankfully shut down by Vegeta), even though she's only 9 going on 10 (14 to 15 in the Funimation dub which puts GT later in the timeline). Pan's crop top isn't judged the same way, as she at least has sleeves and jeans. Bulla's game appearances are affected similarly, giving her access to the "Sexy Smile" flirt technique in Fusions and Dokkan categorizing her under "Peppy Gals" (a category that Pan doesn't qualify for unless she's fused in Pandel or Bulpan).
Even if you're not down with Truten yaoi, there are so many het ships possibilities with Goten- there's Valese in GT, several classmates in the DBS manga's Super Hero chapters... and if you don't want a character too out of nowhere, I've found that Marron is very rarely brought up in the ship discussion.