How to say "I want to talk to you about many things"


I'm not sure how to say "I want to talk to you about many things", is
「/Name/に話したいものがたくさんある」okay?




Your attempt is already good, but you have to use [こと instead of
もの](https://www.wasabi-jpn.com/japanese-grammar/generic-nouns/) because a
topic of a conversation is not tangible.

> I want to talk to you about many things.  
>  あなたに たくさんの **こと** で 話をしたい。
>
> There are many things I want to tell you.  
>  あなたに 話したい **こと** が たくさん あります。

