Hey you know what's super funny about the idea of "good bi rep"?
For a character to be canonically bi you have to make sure and establish that they're attracted to multiple genders. Not all mediums allow you to get inside every character's head or show what they're thinking. Flirting can be read ambiguously, and god forbid they flirt with a character who's not into them and be read as pushy or predatory. So it can be super handy to just mention an ex or two! But you better not mention too many exes because that would make them a slutty bisexual which is (checks notes) bad, and you definitely better be careful about making them poly, because that might make them, uh... greedy. Oh, and those exes? They better be perfectly amiable breakups with no conflict or drama, because it's bad to represent queer people in toxic or abusive relationships (especially queer women! very bad), and you definitely can't have them have lost a partner if the partner was queer because that's "bury your gays..." You should probably also eliminate all trauma from their backstory, just to be safe. You should probably also make sure they're not involved in crime, deception, or anything of the sort, because that would make them "deviant" and a stereotype.
But don't worry! Once you've carefully crafted your nice, monogamous, experienced-but-not-too-experienced Lawful Good bi character, you will be rewarded with your audience deeming them "boring" and quickly passing them over for other characters. :)
#"establish bisexuality in 1 sentance by having the character say they banged your mom and dad
bisexual representation solved by @go4ino everyone go home.
