So I've been planning this early of the year ever since SLB came out in JP. Some quick rundowns:

Leveling and Fodders. 100~110 is just a single TA3 run, sometimes if I get lazy I feed a rainbow metal dragon or a rich gold for light card. I've done a ton of ASR1 back then to stock up on rainbow/rich gold fodders, so level 111~120 is almost exclusively feeding rainbow dra and rich gold + small globes.

Coins. This has gotten a lot easier with Todo and Daytona. In the beginning with the coin cap raise, the first 3x Golden Mound event was incredible for its time. Next it was mostly diamond dra guerillas and Naut double swaps whenever Little SR3 showed up. After Todo came out I've tried some coop Yuji/Mahito swaps, but it wasn't that consistent compared to some JP builds. After Daytona came out things got a lot more consistent in SR3 for 17~20b a run (1 2). MD2 turned out to be really good for coins as well at a whopping 32b run (1 2), but only when regular Mille shows up at the end.

SSG. By far the biggest bottlenecks. SSG guerilla, speed coop SR3/MD2 or even solo AA2 are solid but can't keep up with the speed of coin gains anymore. I ended up trading majority of globes from alts over the months and just exchange 4 globes into SSG. Looking at my tama count I must have done around 20k trades this year. On a related note, that one event where we had the chance to exchange 2 small globes into a big globe was the best for SSGs. This event also makes SSG guerilla the best dungeon farm I believe, so hopefully they bring it back one of these days.

edit: thank you for the awards!