YouTube Premium costs as much for just two months as Nebula does for an entire year (if you sign up through a creator's code—US prices. Australian prices it's about 2.6 months) Highly recommend, probably the best bang for your buck option.
Dropout is quite a bit more expensive than Nebula, and narrower in range of content (basically comedy panel shows, sketch comedy, and D&D), but it's still only 5.4 months' worth of YouTube Premium in cost (for your second & subsequent year—4.3 months for the first year discount), and you're directly supporting the creators. Still a very good deal.
If you've got both of those, that's 8 months of YouTube Premium's cost, leaving 4 months worth that can be spent directly on individual creators' Patreons, Kofis, one-off donations, or on their merch.