Congratulations on your approvals!
Congratulations on your success so far. You are definitely on the right track.
After you MasterCard’s sixth statement closes, check Capital One and Discover for any preapprovals.
You may also want to review the 24 months to 720 plan as a reference. You got a solid base, just let those cards age perfectly for you.
You got 4 cards and an installment loan now. Time to garden for a while. You meet the limit for best FICO scoring. Save all your next inqs for at least 6-8 months. Use the cards and PIF except 1 at <8.99%. Then apply down the road. Cap1 is usually a year, some get in sooner. I'd check the pre-qual in July for Cap1 and Disco. Until then take care of what you got. Let the new accounts age and the inqs too. Good Luck!