Another vote for the Blue Note Tone Poet series, any of the pressings there would be a fine addition to a collection.
Oscar Peterson is an artist worth collecting as well. Lots of great choices, here's one that I think is very well done: https://store.acousticsounds.com/d/175940/The_Oscar_Peterson_Trio-On_A_Clear_Day_-_Live_in_Zurich_1971-Vinyl_Record?gad=1&gclid=Cj0KCQjw_5unBhCMARIsACZyzS32zXiVzfK8Q7-7LHCSY_IQC4xhqkhc-GGmccCqD3ZPQreh4Jkgy-caAjwjEALw_wcB