Comparison table of lightning channel markets

list	ease of use	cost of liquidity	bidirectional liquidity	chain fee burden	trust/enforcement
channel swaps	easy	arbitrary / free	yes, two channels	both	min/LN
trusted swaps	easy	arbitrary / free	yes, swapped funds pushed in one channel	one side	trusted/LN
rings of fire	complicated	free	yes, two channels	one channel each	min/LN
lightningnetwork.plus	easy	free	yes, two channels	one channel each	min/LN
LL Pool	complicated	base fee + ppm (+ 1000 ppm to LL)	inbound only	seller covers	min/poold+LN
liquidity ads	CLI only	base fee + ppm paid to the Peer only	yes	buyer covers	min / seller funds are locked until expiry
Amboss.space Magma	easy	ppm (+ 10% of the fee to Amboss)	inbound only	seller covers	social based on reputation system