These are the plush versions of Lady and the Tramp and Lady and the Tramp 2: Scamp's Adventure characters.
(Please note, plush were available at the time of writing. It is unknown if they are still available.)
They also have plush characters from Lady and the Tramp II from McDonalds Europe.
Tramp
Tramp at JCPenney
https://www.jcpenney.com/g/lady-and-the-tramp-stuffed-animals/N-1z0q1x5Z1z139je
Tramp at the Disney Store (shopDisney)
https://www.shopdisney.com/tramp-plush-lady-and-the-tramp-medium-16-1358366
Tramp and Lady and the Hallmark Store
https://www.hallmark.com/gifts/doggone-sweet-lady-and-the-tramp-stuffed-animal-1VTD1510.html
Medium Tramp at the UK Disney Store
https://www.disneystore.co.uk/tramp-medium-soft-toy-412022167621.html
A Vintage Tramp on Etsy
https://www.etsy.com/ca/listing/554978208/walt-disney-tramp-pup-vintage-plush-toy?ga_order=most_relevant&ga_search_type=vintage&ga_view_type=gallery&ga_search_query=plush tramp&ref=sc_gallery-1-2&plkey=3e29cd30a3787b74ace31691ed260b2e7770217c:554978208
Another Vintage Tramp
https://www.pinterest.ca/pin/182184747404796769/?lp=true
A Tramp plush on mimibazar
https://www.mimibazar.cz/inzerat/91684679/tramp-42cm-plysova-hracka
A Tramp plush from Walmart
Lady
Lady plush from the Disney Store (shopDisney)
https://www.shopdisney.com/lady-plush-lady-and-the-tramp-medium-14-1358422
Small Lady and Tramp plush from the Disney Store (shopDisney)
https://www.shopdisney.com/lady-and-the-tramp-plush-set-valentines-day-small-1461300
Lady plush from Walmart
https://www.walmart.ca/en/ip/disney-lady-plush-toy/6000196044590
Lady mini bean-bag from Disney Store UK.
https://www.disneystore.co.uk/lady-mini-bean-bag-412023559661.html?cgid=1000025
Lady plush from JCPenney
An itty bitty Lady plush on ebay
A Vintage Lady plush on ebay
Peg
A Peg plush on alibaba
https://www.alibaba.com/product-detail/LLady-and-the-Tramp-PEG-Premium_591708074.html
A Peg Tsum Tsum
https://www.disneystore.co.uk/peg-tsum-tsum-mini-soft-toy-lady-and-the-tramp-412345498495.html
A Peg plush from Walmart
https://www.walmart.com/ip/Disney-The-Lady-The-Tramp-Peg-Plush/689777915
Trusty
A Trusty plush from Amazon UK
https://www.amazon.co.uk/Disney-Lady-Tramp-Trusty-Cuddly/dp/B009ABVIU6
A Trusty bean-bag plush from ebay
https://www.ebay.com/itm/Disney-Bean-Bag-Plush-Lady-the-Tramp-Trusty-/291453286608
A Trusty tsum tsum on ebay
https://www.ebay.com/itm/Disney-Store-TRUSTY-Tsum-Tsum-Plush-Mini-3-Lady-And-The-Tramp-/202043330679
A Trusty plush on picclick
https://picclick.co.uk/Disney-Store-Lady-And-The-Tramp-Trusty-Bloodhound-132583886645.html
Angel
An Angel plush on ebay
An Angel plush on Worthpoint
https://www.worthpoint.com/worthopedia/lady-tramp-ii-plush-doll-angel-disney-27893575
Another Angel plush on Worthpoint
https://www.worthpoint.com/worthopedia/lady-tramp-ii-angel-stuffed-dog-plush-1726785271