I've got one already, but it turns out Comcast and general interference are still the main issues.
I'll be switching to fiber-optic through another company soon, so that should take care of comcast's inconsistancies.
Likely getting those new micro-signal repeaters that have been catching on.
Most of the time when I have network issues, it seems to be either comcast throttling or when networks are constantly switching up on the list, leading me to believe a lot of it is signal interference. I've tried switching channels as well, and that didn't make things any more consistent.
Those repeaters send out a strong, short range signal for a single room that will likely beat out any interference, likely fixing the largest suspected issue.