For me, power bottoms don’t necessarily have to be big and bulky either. I love a power bottom that knows what he wants, takes control of his own life, while having the seme wrapped around his finger. I haven’t read guildmate next door but the uke from https://www.mangago.me/read-manga/incidentally_dyed_by_spring_s_love/ was refreshing for me to see ٩(๑❛ᴗ❛๑)۶
i like the bottoms in these a lot
https://www.mangago.me/read-manga/my_influencer_boyfriend/
https://www.mangago.me/read-manga/a_kiss_for_each_face/
https://www.mangago.me/read-manga/pink_heart_jam/
https://www.mangago.me/read-manga/the_golden_goose_dressed_as_alpha_boss/ (tbh this is exactly what u said, prev alpha reincarnated into twink and forced to bottom but i still like him lol)
My takes of powerbottom that have displayed strong control, grace, and character:
Fullmoon alchemist
Darkness before the dawn
Kingsmaker
I can see your stat
Kiss me if you can
Park hanhoo’s manager
An unsettling scent
Here you are
Cover up
Dyed by summer’s love (mc uke have displayed such grace amidst tumultuous environments)

I personally think Yeowoon from guildmade next door is a good presentation of a power bottom. I don't know if that's because I like #bottomjigupropaganda or what, but I think a power bottom doesn't necessarily have to be big and bulky or super mean and hardened. A lot of these power bottoms are just previous aggresive tops who got coerced into bottoming and the new top is even bigger than them, or they're not really power bottoms, they're just bigger and bulker than the top. Yeowoon is kind and sweet, he's also average male size (compared to Jigu), but he takes control of the situation. Jigu melts under his touch. I really like it.
Who do you think is a good representation of a power bottom? and
do you guys have any rec with a similar power bottom? Thank you!