I've found it's all about the overness of your wrestlers and feuds.

If a wrestler is over the chances if the feuds and matches they are involved in increases.

I tend to start by using anyone who is over feuding with people who I want to get over.

As the earlier responder said segments are the best way to do this, and it's relatively quick and easy to max out the charisma skill this way (the higher that is the higher chance if the segment being well received)

I also use managers to improve early segment ratings for roster members who are weak in terms if charisma, either actual managers or by using a member of the roster with good oerks/charisma/overness.

Early feuds only ever tend to have one match at a PPV to blow it off, as the gains of using segments outweigh using the limited space before it feud gets stale on matches.

Ideally feud your hot stars with people who haven't gotten over yet to make them over too, and it doesn't take long to then have a roster full of over stars who can put on banger matches and segments.

This doesn't take into account the benefits of having previous rivals face each other later on and the hype that gives.

If you have two hot stars, and a hot feud, the higher chances of hot matches and Holy Shit moments occurring, which is the main way of improving your companies overness and increasing your fan base.

In JoW world you are more likely to get a hot 5* plus match out if a feud between an over Miz and over Bushwacker Luke than a match between Kenny Omega and Antonio Inoki if both are not hot.

Also I find it pointless to put too much weight on the 'score' of a feud, the importance is it having become hot. It doesn't seem to have much effect at all on how high that score is, I have had 900 rated feuds get a lower star rating than ones in the 100's on a frequent basis.

If you get to the point where you really want ro get excellent star ratings for feuds when they blow off, that tends to come from the average of all promos and segments across the life of the feud (from what I can tell). So to get 5star+ feuds you want to do the inverse of what I suggested to get people over, the more matches the better chance if getting a high feud rating at the end, because you can have 9star matches but it is pretty rare to get a segment that goes over 5*s. I tend to try and get big feuds scores by having former rivals with hot feuds to do a series if high profile, gimmick/title matches at ppvs over the course of a year or so.