Not really. I suppose you could count the tacoma, but to me it's kind of a wimpy truck and you couldn't give me a toyota anyway.
Only less than full-size truck Stellantis sells in the U.S. is the Jeep truck, which doesn't do much for me.
Unfortunately, despite persistent rumors of a Ram Dakota it doesn't appear that Stellantis is planning on having an entry in the mid-size truck category. A shame, I really liked the 2 Dakotas I've had.
I'll probably be in the market for a replacement truck in the next few years...much as I like my Dakota, it's 23 years old and isn't going to last forever. Don't want/need a full size truck, and always buy used. Not many Colorados or Rangers on the used car lots. Like the OP, I'm split between the 2...guess it'll come down to which one I can find a good deal on when the time comes.