For 26650 lights i think these are worth a mention
A review of the trustfire A8 here:
https://budgetlightforum.com/t/-/8028
A review of the POPPAS W-878 Flood-To-Throw
https://budgetlightforum.com/t/-/8204
For protected 26650 batteries.
Protected Trustfire 26650 5000 mAh Battery, this one tested well
https://budgetlightforum.com/t/-/8030#comment-161759