i got my first figure around 2022 i believe... my vegito figure!! i really got into collecting summer of 2022
(and 16 of them are miku!!)
tba
i mostly buy my figures in person at Manga Soukou or win them at arcades, but here are some sites that are popular !
word of advice, don't buy from amazon! they overcharge a LOT compared to what you can get secondhand, and the boxes (for me at least) get super damaged.
also, bootlegs are very very common! you can usually tell if a figure is one by looks alone, but if theyre SUPER cheap its good to check out the pictures more.
tba