Sandoz has a sale going: For every $ 95 USD/$ 125CAD you spend, you get a 1kg spool of either Silk PLA or PETG filament for free. Shipping is also free as well.
If you’re in the US, you don’t have to pay taxes either.
They have a decent range of PLA, PLA+, Hybrid PLA/ABS and PETG filaments
They also provide commentary and recommendations on different filaments that they have used and tested.

Shipping took some time but it’s surprisingly fast.

NOTE: if you’re buying their filament and you’re in the US, make sure your card doesn’t charge a foreign transaction fee.