Try "a fortune telling Princess"
https://www.mangago.me/read-manga/ending_maker/
They're just adorable and it's a nice read. Isekai and both leads are nobles. There's romance.
https://www.mangago.me/read-manga/cashman_of_a_ruined_game/
This is a fun read and it's pretty funny. Isekai and MC is a royal. There is romance.
https://www.mangago.me/read-manga/how_to_get_on_the_main_character_s_flower_path/
I love all the characters so much. Ignore the male lead war in the comments and read the story first to form your own opinions. This is an isekai and there is romance.
https://www.mangago.me/read-manga/the_bratty_young_master_raises_hell/
This is the embodiment of Thief X Detective. This is an isekai and there's romance.
https://www.mangago.me/read-manga/you_turned_off_the_pain_setting_magusmanga/
Underrated and it's plot is pretty unique even though it's technically an otome Isekai kind of story. This is more otome game related and there's no Isekai and MC isn't royalty but I like it. There is romance.
https://www.mangago.me/read-manga/the_100_curses_of_illeston_mansion/
It's a bit scary at times and its main focus is on the curses. It's an isekai and MC isn't a noble or royalty. No romance as of now.
https://www.mangago.me/read-manga/kill_the_male_lead_to_become_the_demoness/
The male lead is adorable. Sunshine X Grumpy. This is a regression kind of story (it's complicated) and there is technically a system. Both leads aren't royalty or nobles.
https://www.mangago.me/read-manga/though_i_am_an_inept_villainess_tale_of_the_butterfly_rat_swap_in_the_maiden_court/
This has an anime in production. The main focus of this is the two female leads and there's no romance (just sismance). One of the female leads is a villainess. Both leads are nobles.
https://www.mangago.me/read-manga/the_one_within_the_villainess/
This has an anime in production. This one is just AMAZING. MC is a villainess and is a noble. There kind of is romance. Technically.
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https://www.mangago.me/read-manga/i_have_to_be_a_great_villain/
This is a BL story and there's no smut. World hopping story and MC is a villain. Note that there's an annoying system. There's romance but it's a bit angsty.
https://www.mangago.me/read-manga/i_can_see_your_stats/
This is a BL story and there's smut so you are warned. Isekai, not royalty or a noble. There's romance and a system but the system isn't annoying.
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https://www.mangago.me/read-manga/got_dropped_into_a_ghost_story_still_gotta_work_novel/
Amazing. It's a bit scary and there's no romance.
If you haven't read Omniscient 's Viewpoint yet, I highly recommend it. There's no romance and it's Isekai.
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Lastly, if you're interested in reading idol stories and don't mind mostly regression stories instead of Isekai/reincarnation, here are some.
https://www.mangago.me/read-manga/i_became_the_cursed_idol_leader/
Reincarnation in the same world and there's a system. It's a pretty chill system I think? No romance as of now, only sismance.
https://www.mangago.me/read-manga/i_was_trying_to_debut_my_kid_but_i_ended_up_debuting_myself_grim_scans/
Regression and there's a system that's a bit annoying at times but mostly chill. No romance as of now, only sismance.
https://www.mangago.me/read-manga/debut_or_die/
The OG, the most popular, the MC that needs therapy, it's Debut or Die! One of the members actually gets speech therapy so you can look forward to that. Reincarnation story that takes place in the same world. I think there was a system and it probably wasn't annoying if there was one. No romance, only bromance.
https://www.mangago.me/read-manga/saving_the_doomed_idols_with_my_touch/
Reincarnation but still in the same world. No romance as of now. No system from what I can remember.
https://www.mangago.me/read-manga/manager_kim_hates_idols/
Regression story (kind of?). Annoying system that pisses me off non stop. No romance, at most bromance only. #Everyone needs therapy.
https://www.mangago.me/read-manga/i_became_the_youngest_top_idol/
A bittersweet story in my opinion. It's a regression kind of story. Not sure whether there is a system or not.
https://www.mangago.me/read-manga/monochrome_rumor/
BL story and there's no smut as of now. It's a reincarnation story that takes place in the same world.
https://www.mangago.me/read-manga/surviving_as_a_pd_idol_kyuzen_x_karinz/
A more cutthroat and "asshole-ish" MC. I love him so much as a character. It's so refreshing. It's a regression kind of story (it's a bit complicated) and there may or may not be a system. Not sure. There's no romance and only bromance.
https://www.mangago.me/read-manga/a_blank_slate_regression_for_the_idol_that_lost_his_original_mindset/
An "asshole-ish" MC. Extremely relatable, I would curse till the high heavens like him too. Annoying system that has some lore to it. Still hate the system though. It's a regression story and there's no romance, only bromance.
this is gold oh my gosh dude you should make a list out of these i genuinely thought i already read peak but not even half of these recs aren't coloured grey
Aw thank you. Maybe I'll make a list when I have time
Tysm!!
I became a crow
Can you guys recommend me something featuring the "reincarnation trope" (as a villain/ess, etc.), or something where the characters are noble or royal (doesn't matter if male or female). Like, your absolute favorite... because I’ve pretty much always avoided those kinds of stories so far, but I’d love to give them a try because I feel like I’m missing out on something