There are a lot of solid rdas on the market right now.
The derringer and stumpy are very similar, 3 vs 2 post decks, I'd consider both to have a good amount of build space despite the small chamber size.
The velocity is easy to build on, the 2 post deck has the post screws rotated 90° so they are horizontal rather than vertical.
As for bottom flow atomizers, I'd say there are better options than the magma now.
The Nixon by ehpro is a little trickier to build on vs some others here, but the fit, finish, and AFC valve on it are great.
The freakshow and mad hatter are very similar. The 1:1 versions actually have a fairly small chamber due to the tall build deck, so the flavor isn't muted like you would expect.
The derringer and stumpy are very similar, 3 vs 2 post decks, I'd consider both to have a good amount of build space despite the small chamber size.
The velocity is easy to build on, the 2 post deck has the post screws rotated 90° so they are horizontal rather than vertical.
As for bottom flow atomizers, I'd say there are better options than the magma now.
The Nixon by ehpro is a little trickier to build on vs some others here, but the fit, finish, and AFC valve on it are great.
The freakshow and mad hatter are very similar. The 1:1 versions actually have a fairly small chamber due to the tall build deck, so the flavor isn't muted like you would expect.