There are a lot of アニメ Mother + Son relationships I really admire. Kushina and NARUTO -ナルト- Uzumaki is a main one but since it already got mentioned I'll go with Delia/Hanako and Ash Ketchum/Satoshi from Pokemon. Both pairs always reminding of me and my own Mom in particular XD Inko and Izuku Midoriya do too so they are quite a close 秒 !!!!
They don't have the most touching または warmest sentimental kind of relationship, but あなた can tell they both care for and 愛 each other very much and when they're together, they're HILARIOUS <3