I like the microfibre ones from Amazon, they usually come in a 2 pack for under $20. Ive had them for a few years and theyve held up well.

US: https://www.amazon.com/Your-Choice-Antibacterial-Lightweight-Backpacking/dp/B07BTS42HK/ref=mp_s_a_1_27?crid=35OO5AHCUGE3Y&keywords=gym%2Btowel&qid=1686363328&sprefix=gym%2Btowel%2Caps%2C184&sr=8-27&th=1&psc=1

Canada: https://www.amazon.ca/BOGI-Microfiber-Travel-Sports-Compact/dp/B07855QKX5/ref=mp_s_a_1_10?crid=3RHMYXNABN71O&keywords=gym+towel&qid=1686363614&sprefix=gym+towel%2Caps%2C161&sr=8-10