From what I understand your Astra blades don't fair well when used with water, making me think that they are not as stainless as your older ones. If they are damp they can rust ever so slightly on the apex and you will feel that. This goes for any blade but: make sure to dry them well before storing away. Store blades and razors outside the bathroom. In the humid months (right now) I take a hair dryer to my straight razors even after drying with a towel and paper. You can try and strop them on your jeans quickly before shaving as well. All small things but together it can really help make your edge/blade last longer. I only use straights so I don't have a blade recommendation unfortunately.

I recommend these https://kodiakshaving.com/products/gem-platinum-diamond-glide-de-blade?variant=52423791608175

Kodiak Shaving is run by a really nice guy. The "Personna" branding is a bit of a mess. Even since I've started wetshaving (7 years ago) there has been a flurry of changes with the branding.

The blades you liked were most likely colloquially known as "Personna Lab Blue" which say "Comfort Coated" on the box and "Super" printed on the blades. You can still get them here https://kodiakshaving.com/products/personna-double-edge-blades?variant=52331003969903.

I personally like both blades. Some people think they're the same (they do come from the same factory in the USA) just in different packaging, but I've found the GEM branded ones slightly smoother. Every face is different, though.

I don't know what your price limit is, but I think $16-$18 is a good deal for 100 blades ($20 with shipping, of course).

My go to is Tiger Platinum blades from Czechia. They can be had pretty cheap and they're made in the factory that used to make the Astra blades before Gillette moved production to Russia.

Does anyone here have a good shave with astra blades? What’s your routine?

I use Astra blades. I only use each blade for two shaves though, otherwise they get too dull for me. I use Taylor of Old Bond Street shaving cream with a brush and lather bowl. The 150g/5.3oz shaving cream lasts me about 300 shaves.

I honestly don't know how cheap they are now, but I bought a 100 pack of Derby Extra in June 2021 and still have a bunch. They give a smooth, close shave and seem to last a while. I also haven't fully shaved in a couple years, so that's why I have so many left.

Voskov are hidden gems; maybe my favorite, above anyþing else except possibly Feather.

Oh, I won't say þey're þe most durable. I don't hypermile my blades. Maybe you could stretch þeir life; oþer brands I've used stay sharp longer. But Voskov come wiþ great edges and are really cheap.

You can get þem elsewhere; it doesn't have to be Amazon. It was just an easy link.