Provided the cleats
are strong enough, you can run a length of thick rope
through each of them (with top spec anti-chafe to it); then you can tie individual lines onto the ropes.
Then, you can run a line round the boat
and secure lines to it.
Then, if the mast
is keel-stepped (and man enough) you can also tie lines to the mast
If docked, space allowing you may drop a kedge off the water
side (or run a line to the opposite shore - if you are in a channel, etc.. But make sure such a line does not impede other sailors options.