I need help finding a list or good dragon x human romance bl like Bride of Ignat.

https://www.mangago.zone/read-manga/dragon_s_bride/

TANK Uヾ(❀╹◡╹)ﾉ~

This is technically what you're looking for? But there isn't a huge dragon aspect to it. It's a good read regardless though.
https://www.mangago.zone/read-manga/regas/

Here dear, enjoy
https://www.mangago.zone/home/mangalist/2136760/

https://www.mangago.zone/read-manga/dragon_making_love/
https://www.mangago.zone/read-manga/smyrna_capri/ kindof

https://www.mangago.zone/read-manga/dawn_of_the_dragon/

https://www.mangago.zone/read-manga/kamisama_no_uroko/

https://www.mangago.zone/read-manga/keeper_of_the_pearl/

https://www.mangago.zone/read-manga/dragon_s_first_crush/