Berroco Blackstone Tweed Yarn is a similar yarn: wool, hand wash, heavy worsted/aran (16-18 sts/4 in), 4.5 sts / inch, and 50 gram. You may also like Rowan Super Fine Merino Aran Yarn, which is another similar yarn: hand wash, heavy worsted/aran (16-18 sts/4 in), 50 gram, and on size 7 US needles.
What about yarn that have the same look and feel? Find more yarn with a fine tweed texture, a low (drapey) twist, and is machine dyed.
Hopefully our suggested project ideas for Tahki Tara Tweed Yarn can help you come up with your next exciting new project idea!