Try Tomb Raider King! It's still on-going but its also good! I can also recommend Eleceed but the story line is not the same as this but its also good!
http://www.mangago.me/read-manga/tomb_raider_king/?rwF1
http://www.mangago.me/read-manga/eleceed/
this one is a hidden gem!
http://www.mangago.me/read-manga/mercenary_enrollment/
Not really the same but here are some OP MCs:
Second coming of gluttony/avarice
Second life ranker
Leveling up by eating
Return to player
Max level returner
MEMORIZE
THANK YOU SO MUCH OMG I LOVE YOU I HAVEN'T READ THESE AAAAHCKK
You guys are the best huhu
Can you guys recommend me more like this story? I might have read some of the things you'll recommend but please!!