Just finished mgs3! Now what?

I have spent the last month or so playing through mgs1, mgs2, and mgs3 for the first time through the master collection on ps5. Loved pretty much every second of it BTW. And now that I finish those I’m sorta lost. I want to play these game in release order, so the next game is mgs4. But I don’t have a ps3. And yes I know that it will finally be on ps5 in August, but I don’t want to put this series on complete hold yet. That leaves mgs5 as technically the next to play, but again I want release order. I do own mgs delta, but that’s just a remake of 3. So should I just play that to sooth my appetite or wait til August?