good gambits as white

King's gambit and Evans gambit come to mind immediately. For Evans you can continue playing e4 e5 Nf3, then if the most common move Nc6 is played, then you play Bc4, and if Bc5 you play b4. King's gambit will require you to switch Nf3 with f4, but it is probably the best way to force a gambit against e5, since your opponent can't deviate with petrov/philidor/two knights/etc.

1.e4 - Kings Gambit , Evans Gambit, Vienna Gambit, Danish Gambit, Urusov Gambit, Bird Gambit, Smith-Morra Gambit, Wing Gambit (in the sicilian and the french), Leonhardt Gambit

(not all of them work with 2.Nf3 and some are not against e5, but worth checking out)

1.d4 - Queens Gambit, BlackmarDiemer's Gambit, Staunton Gambit

good gambit is an oxymoron

#7
Queen's Gambit is not a true gambit: black cannot hold on to the pawn.

Wing gambit is nice, so is the Blackmar-Diemer gambit, the Scotch gambit is good too.

@tygxc Yes they can hold on to the pawn, they'll lose a knight instead, but they'll be up a pawn and white is better hence it's a good gambit...

So is the evans, staunton, etc... (most best lines black just gives back the pawn) ... if you can pose practical problems to your opponent (even if stockfish refutes it)...  if it causes them to waste time, or go into uncomfortable types of positions where you're in familiar/prepared territory, or simply a position that is slightly better but much more difficult to play where one imprecision by your opponent proves fatal and all your moves are natural, it's a good move/gambit

There are plenty objectively sound gambits

Queen's Gambit is best gambit

Both Marshall gambits are good, Jaenish gambit (vs. Ruy Lopez), Benko gambit and Vienna gambit have been played at the top level, Scandinavian gambit is fine for black (in fact it is so dangerous that it is considered better to decline it and enter a Panov). Several top GMs can be quoted as saying the Evans gambit is objectively sound, and the Kluever gambit is even much better for white.

The grob gambit is always an option

The OP is rated in the 900s. I think he means he's looking for something simple that he can play easily that might trick some opponents Also, he did specify white.

For this, the King's Gambit is terrible. It has a lot of theory that if you don't learn, you'll get murdered.

The Evans is pretty simple, and so is the Danish, and both have pretty straightforward plans. The Vienna Gambit is also in that ballpark and is plenty solid, but is maybe half a step above the other two. The Scotch Gambit is another half step above that in complexity, and lots of fun to play. It's one of my favorites. The Urusov Gambit has the unfortunate problem of getting people to play into it, which mostly they don't.

If by gambit you mean something trappy, tricky, and can get you quick wins, I got nothin' and won't be a party to them.

highly recommend the Danish gambit as it is very rarely declined in your level

#17 when Black plays 3... Qe7 good luck finding equality as White

Well, my level players aren’t smart enough to find that…

Thanks for all the responses, though.