I am sorry if I do not fully understand. But, are you trying to say that the muppets I suggest to meet, have the same personalities as each other?
I want to look:
Oscar is similar to Statler and Waldorf. I can see why they might be too similar. The both of them are grouchy and anti social to the other muppets.
Prairie Dawn and Janice are kind of similar, but I do not think they are too similar. Janice is much more of a personified rocker than Prairie Dawn is. Prairie Dawn seems to be much more calmer and talks about sex a lot less if not any.
I do not know Hoots, Don Music, and/or Little Jerry and the Monotones that much, so I can not really compare them with Zoot, Rowlf, Dr. Teeth, and the Electric Mayhem. But, Zoot and Hoots both play the sax, Don Music, Rowlf, and Dr. Teeth all play the piano, and the Electric Mayhem and Little Jerry and the Monotones, as well as other "Sesame Street" music bands (and maybe other "The Muppet Show" muppets, as well), are music bands.
Herry Monster and Crazy Harry have hardly anything in common, except the both of their names, both are voiced by Jerry Nelson, and (*I think*) both are inquisitive.
I can see the obvious resemblance between Cookie Monster and Animal, the both of them are voiced by Frank Oz, lack self control, and like to eat a lot. But, Animal did say in: "The Muppet Family Christmas", after Cookie Monster took Janice's cookies, she asked Animal who was that "strange blue creature", and he said that that creature (Cookie Monster) was his kind of fella.
I can also see the apparent similarities between Grover and Gonzo, besides the both of them are blue with reddish-purple noses, the both of them are heroic and like to perform great stunts (Super Grover and the Great Gonzo), the both of them are optistimic, and the both of are also happy-go-lucky, imaginative, and carefree.
And, last but not least Ernie and Lew Zealand and Bert and Marvin Suggs -
I do not know Marvin Suggs that much, but from what I do know about him, he is really similar to Bert, he may look nothing like him, but the both of them do act alike. At least, I think so anyway.
Now, as for Ernie and Lew Zealand. These two have a lot in common. Not only do they look nearly identical, but they act a lot alike, both have a toy that they like to play with and show off, the both them are happy-go-lucky, goofy/zany, surprising, love to sing, and love to play jokes and tricks on others. But, of course, Lew Zealand is much more similar to Ernie than Marvin Suggs is to Bert.
So, if these muppets meet each other, that might not be a bad thing. They may have a lot in common. But, maybe their similarities can start new shows and of the like. I can understand where you are coming from. But, what do you think?
Muppetmonster