L239's actually thrive in warmer water.. Planet Catfish lists their temp range at 73.4-84.2°F. And they have reports of breeding them up to 87°F (
https://www.planetcatfish.com/shanesworld/shanesworld.php?article_id=436).
I currently have 8 unsexed juvie plecos growing out in my Discus tank and it's gone well for almost a year now...
(2) Peckoltia sp. L494 "Paru Tiger" (77.9-86°F) (5.5-7.5pH)
(2) Panaqolus claustellifer L306 (77-83°F) (6-7.5pH)
(2) Baryancistrus beggini L239 (73.4-84.2°F) (5.5-7.5pH)
(2) Aphanotorulus ammophilus L123 (77-84.2°F) (6.5-8pH)
I have 6 or 7 groups of panaqolus in my fishroom that like warm (80+) water.
Other mid sized, non carnivorous, warm water plecos I keep are Baryancistrus chrysolomus L047, Hypostomus soniae L137, Baryancistrus xanthellus L177 and for whiptails, Sturisomatichthys panamensis.
A few others I've kept are Hypostomus sp. L360, Baryancistrus sp. L142, Peckoltia Compta L134, Peckoltia cf. braueri L135, Peckoltia sabaji and Pseudohemiodon apithanos.
Lots of options, but these are just some I keep or have kept at warmer temps.. Most are active, except maybe some of the peckoltias..
If you decide to try a carnivore, Scobinancistrus aureatus L014 is great, but may grow bigger than you want..