Other than maybe the purrloiner line to tide you over, I recommend catching a naja all the way back at ding dong dell's sewers. It has a fast attack speed and its final forms end up with the 7th and 9th highest overall attack stats in the game.
People keep recommending the Naja, but they are not good for even mid game, they are utter garbage until close to the end of the game as well as post-game. They are NOT a replacement for Mitey for most of the game due to their horrible defense. It doesn't matter that their attack gets up there, they get utterly
wrecked by just about everything. They are literally a Puss in Whatever with much less defense but seemingly much better tricks. Also, if you're trying to max out each evolution level, their first form hits level 36 before maxing, so it takes a hell of a long time.
The best common familiar for a third slot would probably be either a Plessie or a Bighorn for Oliver until you can get a Dino. Also, if you can get a Nacap for Esther,
do so. They have an utterly godlike trick set and offer one of the best area of effect damage spells as well as heals for a long while. It's like a better version of her starting familiar.
I may have to change things up in the post game, but right now most of my characters are in the 70s and I'm at the
. While trying to get every enemy in my book, I hit a bunch of Tokos. lol
It's too bad I'm overleveled, but that's fine.
Not really. The last boss is just that stupid.