Recommendations

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

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

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

turning

I don't know any manhuas but there's a novel which also features an OP MC who wants a peaceful life!! It's BL too!

It's called
Mr melancholy wants to live a peaceful life

Hope you give it a chance ヽ(`Д´)ﾉ