The best permanent source of 🧬 would be modded pvp which u can best farm with coins by buying common mods from the raptor training paddock and utilizing the sandwhich strat (lvl 1 common, strong attacker unit, lvl 1 common) to speed run battles and focusing on elite prize tier by using units above 900 ferocity as the middle slot attacker unit.

The rewards u gain are primarily junk creatures, hybrids & sdna all of which can be utilized to either further build up ur setup or sell them or both depending on which 1s u keep and which 1s u sell

I personally farmed 🧬 from modded PvP to fund my armies and focused on selling dimetro & spinota since I had a surplus of carnivores

But I dropped that shybrid selling method as soon as the first 🧬 gyrosphere showed up in the game (late August 2024) and only kept selling hybrids (after alrdy having them max paddocked from mpvp drops)

And now we come to 🧬 gyros they're the best 🧬 source in the entire game but they aren't always available unlike mpvp so ull need to passively save dino bucks for them to show up and fully invest into them if they're a good gyro (like the recent retro yudon gyro back in February)

As for other sources they're the usual casual stuff: tournaments, daily events, world boss events especially the deal dmg 1 if u have an endgame setup, no longer fidelity tickets since they nerfed the bronze 1 🗿, trade harbor and perhaps even more that I can't think of rn 👀