Surely there must be miracles happening today that contain documented evidence and not word of mouth or faked videos on Youtube, have you any evidence so that we can praise God for his greatness?
Personally I think the greatest thing about many miracles is that they are witnessed by people right there and then and serve a specific purpose right there and then.
Take the lame man in Acts 3. Peter and John spoke to him, commanded him to rise in the name of Jesus, and he was healed. Everybody knew that man was lame, everybody could see he was now leaping and jumping and praising God, so everybody could see that something very unusual had happened.
What if such a thing happened today? Firstly it's unlikely that you'd have a low-key local marketplace where the lame man would sit and beg every single day for years. If he's only been there a couple of months nobody knows for sure whether he really is lame or if he's one of the beggars you read about on the news who is just trying it on. And assuming he were genuine, if he were healed there would be Christians posting about it on social media wondering why nobody took it seriously (when none of those people knew anything about it, other than a wild claim) and others assuming he was some kind of stooge. Precious few people would have any evidence to support their claim.
And then you get the ones labelled the great speakers and great ministers of the day whose web sites are full of grand claims of people who have been healed by THEIR ministry, by THEIR prayers and fasting and the like. Quite aside from the way the focus mysteriously shifts away from God and onto THEIR ministry and outreach programs, it's meaningless. When I see the claim on their web site, even if they've got scans of medical notes, I have no way of knowing if they are genuine. And sometimes they make the whole thing even more abstract because the healing was in some remote village in a developing nation where they don't have doctors in the way we do in the western world.
Even aside from all this, is anything stopping us praising God for his greatness without tangible evidence that a miracle happened somewhere else, to someone else?