The basic filter (for all seeds here) is a ruined portal WITH LOOTING SWORD, a lighter (flint and steel OR fire charge), a bastion in pos/pos of the nether, a fortress nearby, blind travel to deep-ocean stronghold from the close fortress at either (150,-150) OR (-150,150).

There are 7 ADDITIONAL filters: no-crying OR lava-type, 3+ iron in chest, golden axe in chest, food in chest, bastion type, nearby village, nearby shipwreck.

No matter what you filter for this takes the same amount of time, BUT if your filter is too heavy I'll reject it because there just aren't enough seeds in the universe for that to not kill the category. When you select your filters I'll tell you the relative weight and approximate seed count in the bank, anything less than 140,000 seeds is too heavy.

Copy the filter code and paste it inside .minecraft\fsg\settings.json by replacing the old filter code.