I don't know about best, but it depends on how comfortable you are with a baitcaster...?
If you still get regular overwinds and have to pull out crows nests on a regular basis, rather get a cheaper mono for the first season. Suffix is a reliable soft mono that pulls out of a crows nest easily without damaging the line. The 7.7kg is a good alrounder that gets fish out of pretty heavy cover, but still soft enough for the open water.
Once you have the hang of feathering the spool on the cast and don't get overwinds anymore, then get a good casting fluoro or something more expensive.
This was my plan at the beginning, but I'm still fishing suffix... Caught plenty of fish and like the feel of the line. It's soft so it comes of the spool nicely on the cast, it's an absolute dream to make knots with, it has a nice stretch to buffer abuse (But it's not too stretchy), and it's relatively cheap compared to casting fluoro....