Anyways while I'd say I do have some doujins I really like with Flan, none of it is really romance and most are non-h anyways. H stuff is fine, but very little of it feels worth linking, a lot of the basics that you could get easily yourself by just grabbing the Flan tag on any given h site. A usual problem of romance being uncommon for a doujin plot. Needless to say I don't feel like linking yuri stuff either.
I can at least give you this, a little bit of romance to it. https://exhentai.org/g/2062957/88f8312712/
