No credit card required
Browse credit cards from a variety of issuers to see if there's a better card for you.
If I recall correctly, you can apply for a new Capital One card every six months. If you go to the prequal page before the six-month period elapses, you'll only get back results for their base Platinum card, so you have to let at least that period of time elapse for prequal offers for better cards to show up.
Cap1 requires 6 months between apps. They're actually getting more strict, not loose. Previously, co-branded cards didn't count towards that limit, but within the last few months, they have been included. As for PCing the secured to a Venture, don't bother. The card is severely bucketed because it was secured. You're better off applying for a new platinum, pc to quicksilver, pc to either savor or venture. I mean, you could definitely do it, but it will take way longer. In regards to the pre qual page, you can get prequalified, but if you apply, you'll be denied and receive a letter that you have a pending or recent application.
Last fall I was approved for a Kohl's card and then a QS1 less than one month later. 11/2017 and 12/2017