I just got level 4 for the scrolls at the secluded shrine...so what are the best ones? and is it profitable to make scrolls and sell them?

I feel divine denizhen is the best scroll in the level 4 section due to it doing a good job at keeping your pets alive (heals 5% and blocks 3 of each icon type), especially in lower tiers. Soothing current is cheaper to make though, although its 8% heal is nice too.

I don't think too many battlers actually buy scrolls outright from the shop search. In fact, I think it is only done if it is cheaper to buy the scroll than it is to make one. With that, I don't think it is profitable to make scrolls to resell them.

The scrolls that sell for tons of sP are often the ones you win from battle at the higher tiers. I keep a hefty stock of crafting supplies, but it's not for anything I would make to sell.

As said, Divine Den is probably the best single level 4 scroll, but if you can't afford the ingredients, lucent barrier will do in a pinch and it's ingredients are usually much cheaper. My main battler is usually the only pet who uses DD, but I have 2 lucents that I rotate amongst my other pets.

There are also some decent bomb scrolls. My other pets also pass around Inferno, Arctici Braver, Gigan Blow, Basalt Blast, Typhoon of Valor, and all the level 4 water scrolls. I don't think you need to have all of these -- or even any. They are just nice perks.

Soothing current is nice for the heal and perilous whirlpool has a small chance to freeze so they are different from the rest of the list. Again, not essential, but sometimes nice. I would think about making sure you have scrolls that heal, block, and damage. As long as you have those three bases covered, you should be in good shape.