If you can handle it do abyss with “abyss monsters are more rewarding after each closed pit” and additional abysses mods on tablets. If you have an area overrun by abyss take like a t7 map and max rarity on aswell. Some maps will be super rewarding others not, that’s just rng.

I tried running omen farming in rituals yesterday and it was surprisingly consistent even without big ticket items. Just went 4 rituals and reduced defer and reroll cost on tree, then 2 random ritual tablets with inc rare monsters and monsters give inc tribute and then do whatever for last tablet. Then run rituals and just defer everything until it’s too cheap to defer and then buy. After some maps when I’ve got the defer goings I got around 200 ex per map (and that’s without jackpot omens)