need!

you'll love these manhwa's as much as you loved reading SL, or maybe much more.

1) Bluelock - https://www.mangago.me/read-manga/bluelock/

2) Leveling with the gods - https://www.mangago.me/read-manga/leveling_with_the_gods/

3) Return of the Flowery Mountain Sect: https://www.mangago.me/read-manga/return_of_the_flowery_mountain_sect/

4) Legend of the Northern Blade: https://www.mangago.me/read-manga/legend_of_the_northern_blade/

5) DeepWater: https://www.mangago.me/read-manga/deepwater/ (COMPLETED)

6) Plaza: https://www.mangago.me/read-manga/plaza/ (COMPLETED, the final chapter is not uploaded in this site, but you can find it in other websites.)

Omniscient Reader's View Point
Apex Future Martial Arts
Solo-max Level Newbie
Return of the Frozen Hero
The Hero Returns
Boundless Necromancer
Superhuman Battlefield

Ranker Who Lives A Second Time : https://www.mangago.me/read-manga/ranker_who_lives_a_second_time/ (it's the classic overpowered mc but the plot and the mc's background are actually interesting though i think they stopped uploading new chapters)

The S-classes That I Raised : https://www.mangago.me/read-manga/the_s_classes_that_i_raised/ (this is a really popular one so you might've read it but it wasn't listed in the replies so i tought i would, the story is really unique and interesting also the characters are so funny)

Poison Eating Healer : https://www.mangago.me/read-manga/poison_eating_healer/ (this also has a very different story compared to others and it's good in my opinion but this one hasn't been updated for a while either)

SSS-Class Suicode Hunter : https://www.mangago.me/read-manga/sss_class_suicide_hunter/ (literally one of my FAVS the story is really original the mc has a really good character and it's a must read)

The Dark Mage's Return To Enlistment : https://www.mangago.me/read-manga/the_dark_mage_s_return_to_enlistment/ (this one is soo underrated i'm literally in love idk why noone's talking about it, the mc is so funny the story is new and refreshing, i definitely reccomend it)

I got this list from someone else but its all manhwas with overpowered mc : https://www.mangago.me/home/mangalist/280075/