
There's some cnovels with decent plot and romance, but I can't think of many manga. The best ones off the top of my head are:
Kiss the abyss
I have to be a great villain
See you my king
The first two are more character focused.
Ones I've enjoyed the novels for include:
Global Examination
Don't pick up boyfriends from the trash
But idk how their manhuas are.

I have a list of BL Isekai if you want to skim some
https://www.mangago.zone/home/mangalist/2208489/
Here are some recommendations that might fit your criteria:
I became Lousy Side Top https://www.mangago.zone/read-manga/i_became_the_lousy_side_top_official/
I Have to Be a Great Villian https://www.mangago.zone/read-manga/i_have_to_be_a_great_villain/
Meteor Orbit (This a reincarnation story not isekai though) https://www.mangago.zone/read-manga/meteor_orbit/
Dreadful Night https://www.mangago.zone/read-manga/dreadful_night/

Stuck in My Sister's Dating Sim
that's all i got of the top of my head. the MC isn't interested in romance at all yet & the MLs keep causing him problems because they are*. it's 100% BL & love is more like a permanent thorn in the MC's side. +he's not really an airhead so much as he has legit concerns he put all his focus into--tunnel vision mentality.
Do any of y’all have a BL isekai story? I don’t want it to be ENTIRELY romance though, I want it to have a good plot as well.
Most of the isekai romances I’ve read either have a shit plot, or the romance is too rushed, forced.
Thx!