I like DuckDuckGo’s Email Protection a lot, and I switched from my paid SimpleLogin account to it. DDG is free and unlimited, the aliases are human-readable, and sites rarely block them. The downside is that they’re sort of hard to manage in multiple respects, but Qwacky helps a lot with the generation of them. The only way(?) to disable an alias is to receive an email through the address and then click the link at the top. There’s also no dashboard to see all your aliases, but I store each DDG email alias in Bitwarden next to the relevant account; that way if I start getting spam from an address I can figure out which account is doing it by searching my vault for it. Creation of an account also requires downloading their extension or their browser I think? You can uninstall it immediately after and manage with Qwacky instead though.
It definitely feels too good to be free considering the competition, but I’d honestly be happy to start paying for it again if they start asking, and I trust DuckDuckGo to not disappear overnight and leave all my accounts fucked. I’m also guessing DDG will eventually implement a better dashboard and management tools, so I’m okay with limping along on an okay UX experience for now given the end results.
It’s important to use services with a workflow that works for you; not every popular service is going to be a good fit for everyone. Find your balance between exhaustive categorization and meaningless pile of data, and make sure you’re getting more out than you’re putting in. If you do decide that an extensive amount of effort is worth it, make sure that the service in question is able to export your data in a data-rich format so that you won’t have to do it all again if you decide to move to a different tool.