Some discounted Houghton Mifflin Harcourt (couponable at Kobo CA, but apparently not the US; prices should be matched at other North American retailers) titles at around $2.99 CAD, which you may or may not want to consider while Kobo is still having the extra bonus points promo:
A Wizard of Earthsea by Ursula K. Le Guin, 1st in the classic original trilogy set in one of her most popular fantasy universes.
Dealing with Dragons by Patricia C. Wrede, 1st in her highly enjoyable Enchanted Forest Chronicles quartet. NB: There's a
4-book omnibus edition which may work out cheaper than buying the individuals, if you do a price-match against Amazon CA, which is
listing it at $20.99, or have a really good We Missed You coupon to splurge with.
Grayling's Song by Newbery Medal finalist Karen Cushman (of Catherine, Called Birdy fame), a standalone fantasy novel for younger readers.
And if you happen to have fond memories of Antoine de Saint-Exupéry's The Little Prince, HMH also have his adult-level short novel (very short, just 98 pages according to Amazon)
Night Flight, which is based on his true-life aviation adventures which partially-inspired TLP. It's another one you'll have to request a price-match on, since
Amazon CA is listing it at $1.99 instead of Kobo's $2.99.