mature sounding names or Victorian esk ones some examples I love are : ophelian, domitius, archidamus, bardolph, zaherus, and Atticus preferably masculine or neutral ^^
i think ive done some victorian, elegant, lengthy and/or academia esque themed name lists before, if not here then there might be some on @namesetc !
im seeing quite the affinity for classical greco-roman names based on your examples, so here's some classic names from english, latin, greek and maybe a few other origins that i think fit what youre looking for:
Graham Everett, Emmett, Earnest/Ernest, Edward, Edmund, Edwin, Erasmus Sawyer, Sebastian/Sebastien William, Wesley, Weston, Warren, Winston Hudson, Harington, Holden, Harrison, Huxley, Hephaestus Fletcher, Foster Atlas, Archimedes, Adonis, Alexandre, Andreas, Ambrose, Acacius, Aryk, Aristodemos, Anaxander, Ariston, Aristide Bennett, Beckham Lincoln, Lacedaemon Orpheus, Orestus/Orestes, Ophelius Perseus, Percival/Perceval, Pericaval Demetri, Demetrius, Demetris, Desmond, Domitian Zagreus, Zephyrus, Zepheroth, Zeus, Zehrus, Zeuseus Isadore Myron Caelian Vespian, Vespasian Jupiter