Best reply to 1.e4, e5 2.d4 for Black??

any suggestions??

I like 1 e4 e5 2 d4 exd4 3 c3 d5 for Black.

I don't like 3 .. dxc3 as much because White has a lot of options there, a lot of which are quite sharp which mostly just end up equalizing for Black if he plays right. So if the best you can do against a prepared opponent playing e4 e5 d4 is equality, then you should just go for the line that achieves it most directly and with minimum prep, and that's 3 .. d5

completely even

What to do against the danish? Don’t let them play it! 

if if you don’t get it, I mean don’t play 1...e5

I fear all gambits, since I know their power firsthand as a gambit player... therefore I never accept gambits unless I see a clear refutation. And I don’t bother to book up on stuff like the Evans, goring, danish, scotch, etc... because I don’t even get to that position!

ofc, if you like playing e5, just watch a vid. YouTube is free.

If you're avoiding e5 because you're worried about the Danish I can hardly imagine there's any move at all that you would be ok with playing on move 1.

That’s not the danish.

...this is,

Lol, I play alekhine’s.

You may notice that the Danish Gambit is not cutting a bloody path through the master ranks. In fact, masters almost never play it. So how scared should you be?

Very scared, because then you don’t have a nice theoretical guide... lol

taking is objectively best, but if you are not up for it, play the nimzowitsch defense transposition.

White can tranpose to a scotch via 3.nf3, or you get standard nimzowitsch stuff like dxe5 or d5 ne7

Danish Gambit is a joke.  I would be concerned about the center game.

1.e4 e5 2.d4 exd4 3.c3 dxc3 4.Bc4 cxb2 5.Bxb2 d5!! 6.Bxd5 Nf6 7.Bxf7+ Kxf7 8.Qxd8 Bb4+ 9.Qd2 Bxd2 10.Nxd2 is dead equal.  If not for the Coronavirus, I would say shake hands now!  DRAW!

center game wins by force

this is a joke please don't kill me.

There's some high-level analysis going on here I hope Fabiano is taking note

The reason that pro players never play the danish gambit is because it it believed that the following moves is atleast equal if not better:

However the centre game is more interesting. It is like a reversed scandinavian defence, which I dont think black should have any problems with. It looks fun to play for both sides though.

pxd4 qxd4 nc6  is the best response i think

a : 1) e4-e5 2) d4-exd4 3) Nf3-Nc6 we will play a Scottish game 

b : 1) e4-e5 2) d4-exd4 3) c3-d3 The Danish Gambit is not in the "refuted category" like normaly the Latvian Gambit but it's the same kind of problem. We don't know much about this dangerous openning, we have [if we play blitz] 3, 5 minutes on the chess clock and we can quickly get beaten.  So in the end 3...d3 seems to me "the best" because it can annoy the opponent [that probably on the accepted gambit will recite a lot of moves known  from a book, from a strong artificial intelligence etc.] and we fall back into a "normal game". 

c : 1) e4-e5 2) d4-exd4 3) Qxd4-Nc6 4) Qe3 then if the player with White is stronger probably he will win but I think it won't be really because of the opening 

@21
a : 3...Bb4+ is stronger: keeps the pawn.

b : 3...dxc3 is stronger: to refute a gambit, accept it.

c : Yes, this is equal.