When first starting out, it can be more useful to follow hashtags and groups than people.
I don't know your interests, but here are some popular photography-related tags:
#Fensterfreitag (pics of windows)
#Fotomontag (just a Monday tag for pics)
#caturday
#throwbackthursday (any oldish photo)
#Silentsunday (peaceful sunday shots)
#MeerMittwoch (seas/oceans on Wednesday)
#fotovorschlag (daily photo prompt)
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