>>528254160
even assuming you don't want to engage with crafting/gathering you still have options
map parties drop raw gil and reasonably valuable mats, OC cosmetic gear is a solid seller atm, variant dungeon stuff is boring to farm but profitable for the same reason, island sanctuary has the more expensive types of materia, bicolor gemstones can be used for mob drop mats or vouchers both of which can be worthwhile, and while combat materia is low at the moment hunt trains print tons of it and tons of tomes for tome mats (always at least somewhat valuable)
what size plot are you going for? if it's a small plot then you can rustle up ~4m in a pretty brief span but if you're going for a medium or large plot you might want to look into DoH/DoL because it'll be more of a long-term grind

>>528254821
pilebunkers are sick as fuck but MCH has that covered already so spear+shield but ONLY if we actually get offhands for it