Renewal Taekwondo in Multiverse

I'm posting this right before I take a nap so no responses until later.

I'm really curious on what world you guys think should be next, so far I've gotten RoR as a suggestion so I was thinking

(after the demon Slayer world, not the temporary travel)

[Low Tier Universes only]

RoR

Tower of God S1

Danmachi

DanDaDan (not watched)

etc

there's some controversy I've seen between some people here about world levels so I'll tell you what I think of them

[Low Tier worlds: No world ending entities or beings that can destroy humanity]

[Middle Tier Worlds: multiple world ending entities or base world power is extremely high like One piece, Naruto or Kabaneri of the iron fortress]

[High Tier Worlds: universal and multiversal level entities such as Marvel, DC, OPM, Tower of God etc]

however Tower of God is really vague and I'd say it's around middle cause none of the characters are as strong as the others from other high tier worlds (from what I've seen)

I rate world levels on how dangerous they are, Danmachi is Low Tier because from what I've seen (I haven't watched past s3) nor have I read it or if there's a LN

Tensura is a high tier BUT I'd have to do research on the LN because I know absolutely nothing about the other powerful stuff

Dragon ball is... well Dragon ball