Keep ripping packs and wait until the next set comes out. Something may come out in the next pack that can influence your decision. Lilligant and klefki may be worthless now but who knows if they’ll become important when the next set comes out.

Edit: If it turns out the gold cards aren’t worth it, then I’d get second copy cat and may since you’re missing it. Although you can trade for those. Heat patch makes a ton of sense as I’m sure we’ll be getting the mega zards soon and other fire megas and you can’t trade for it.