I've heard good things about the Ylidiz (Academy) A71 in 20 ga. Haven't actually held one.
Weatherby SA-08. Very popular with kids/youth at the trap range. I've never seen one with a FTF or ejection issue. Pretty sure they're around the $500 range. I'm not a fan of pumps for self defense.
These are the two that popped into my head when I read the original post. I was considering both before I bought my 20g Franchi Affinity...as they are similar in size and weight, but not so much in price.