Crochet techniques: When First Round has 8 stitches

With the offered technique, the initial swirl looks nicer, there is no bunching up of the initial stitches; technically, it consists of more than 2 rounds, but that will not change the shape or deform your toy in any way

ch2, crochet 6 sc sts into the second from the hook loop = 6 sts

 In Round 2: repeat stitch increase (2 sc stitches in 1 stitch) until you have required number of stitches for the second round.

The resulting 16 (or 18) stitches take up more than 2 rounds, but this will not in any way deform the toy Pull the short yarn end to tighten the hole in the centre.

Most  amigurumi pieces have 6 single crochet stitches (sc) in the first round. Sometimes the number is 7 or 8, even 9, and that is where the problem appears, if I am concerned with neat looks of the top of a toy’s head: there is a hole  right on the top of the head, the yarn loop is not able to hold 8 stitches  — too many,  and a hole may appear later! This problem may not be a problem if you start with Magic Ring but I like this beginning: chain 2 stitches and crochet 6 sc stitches into the second from the hook loop.
Both heads in the picture made according to a pattern with 8 increases in the initial rounds.
The head on the right:
Round 1: ch2, crochet 8 sc sts into the second from the hook loop = 8 sts
Round 2: inc x 8 = 16 sts  — crochet 2 sc sts in each of the 8 sts of round 1

The head on the left is improved by some changes:
Round 1: ch2, crochet 6 sc sts into the second from the hook loop = 6 sts
Round 2: inc x 6 = 12 sts; after that continue to crochet 2 sc sts in each of the next 4 stitches, the resulting 16 stitches take up more than 2 rounds, but this will not in any way deform the toy.