Notes:

Serena and Misty got engagement rings after they accepted polyamory.
Brock got a new vest.
Tracey got new art supplies.
May and Dawn got new dresses
Max got another book.
Iris got anti-freeze,
Cilan got a new tie
Clemont got some tools.
Bonnie got a Tyrunt.
Lana got a new lure.
Malo got new apron.
Lillie got a new hat.
Kiawe got a coat because he was not prepared for Kanto's weather
Goh got more Pokeballs.
and Gary got coal.