>the benefits are low, I don't want to cancel them and have
>them tucked with my passport for a just in case scenario.

Some companies allow you to "upgrade" a credit line. Sometimes it's reported as a new account, sometimes it is not. And often, you don't have to suffer a hard pull on your credit report.

For example, I had a medicore Capital One Platinum card with no points or cash back benefits several years ago and I upgraded it to a Quicksilver ONE card. Then I upgraded it again to the regular Quicksilver Rewards. https://www.capitalone.com/credit-cards/quicksilver/

I'd like to get rid of all my CapOne cards one day but it's nice to have a better version of what I used to have in the meantime.

There are reports of simliar upgrades online. For example: One person on MyFico spoke of having their Chase Freedom Unlimited (FU) upgraded to a Chase Sapphire.