>>96342693
There are a LOT of solid options for casual play in Rakdos, honestly.
I have had fun with Kardur, Doomscourge because he becomes a permanent way to force opponents to attack each other with a critical mass of flickering, cloning, and reanimating him. Do keep in mind that he's bad against creature-light tables and you will also have to deal with a 1v1 against the guy with the scariest field if you care about first place.
Deadpool is a commander I see some former Kardur players switch to because the game plan is similar, but you are just stealing text boxes instead. Not my cup of tea, but it seems some people really like it.
As for some more solid commanders, Valgavoth is solid and can draw a lot of cards, but I find him overplayed and I don't like keeping track of all the triggers to trigger him on each players' turn. Kuja is very solid because he eventually gets you three guttersnipes all by himself, which means a simple draw spell will deal 6 damage to each opponent.
It's a deep well. Nothing wrong with the other two you mentioned, but they might have some more consistency issues. If you have specific preferences, there is probably a more tailored commander for you.