0.1uf electrolytic substitute
0.1 uF electrolytic caps are already or are almost obsolete

The lower cost solid Radial 0.1uF Tantalums have poor ESR (12~26 ohm)

Radial ceramics are fine.
https://www.digikey.ca/product-detail/en/vishay-bc-components/K104K15X7RF53L2/BC3324-ND/2820506  $10 / 100pc