The megathread has lots of great options for aggregators, but doesn’t have any individual scanlation groups (Asura scans, Drake scans, Dragon tea, etc). Those are great for broad coverage, but when possible I like to read directly from the group that put in the work to translate.
kenmei.co does this.
It lets you know whenever a new chapter’s out for something on your list, and clicking on the title takes you to whatever platform you picked for that manga.
They only have something like a dozen sites or so, but it beats having your list break when a site goes down.