I have been using the app Raindrop for this function, the integration for obsidian is awesome. Raindrop also lets you highlight and tag your bookmarks and it saves those into obsidian as well. The share function through the iOS share sheet is really great too, you can categorize and add tags right then too, definitely recommend it in general. Site is raindrop.io

I don’t think you need a subscription for most of it, maybe the highlights, I pay for one for the permanent library feature and so it will stick around so I can’t remember but they do have a free option.