Buying quality links to increase the rankings in the SERPs

Buying quality links to increase the rankings in the SERPs.
Reference Origin: United States of America
Subjects of links - Biology, medicine, pharmaceutics, chemistry.
Good PageRank
The link donor site should be well indexed.

Backlink form in html :
keywords here https://docs.google.com/spreadsheets/d/1qndHFV6vvb6hejCB6IGZLwmR3mQOQDyN3NDE4y3e3dk/edit?usp=sharing or below

compounds dmso https://www.chemdiv.com/company/media/pop-science/2022/compounds-DMSO/
custom chemistry https://www.chemdiv.com/drug-discovery-services/custom-chemistry/
screening libraries https://www.chemdiv.com/catalog/screening-libraries/
dmso compounds https://www.chemdiv.com/company/media/pop-science/2022/compounds-DMSO/
library of compounds https://www.chemdiv.com/catalog/complete-list-of-compounds-libraries/
pre plated libraries https://www.chemdiv.com/catalog/diversity-libraries/100-000-diverse-compounds-pre-plated-set/
screening library https://www.chemdiv.com/catalog/screening-libraries/
diversity library https://www.chemdiv.com/catalog/diversity-libraries/soluble-diversity-library/
Chemical Libraries https://www.chemdiv.com/catalog/complete-list-of-compounds-libraries/
Combinatorial libraries https://www.chemdiv.com/company/media/pop-science/2022/combinatorial-libraries/
chemical diversity https://www.chemdiv.com/
Diversity libraries https://www.chemdiv.com/catalog/diversity-libraries/representative-diversity-libraries-out-of-1-6m-stock/
Compound libraries https://www.chemdiv.com/catalog/complete-list-of-compounds-libraries/
chemistry database https://www.chemdiv.com/company/media/pop-science/2021/chemical-database/
Diversity screening libraries https://www.chemdiv.com/catalog/screening-libraries/
admet services https://www.chemdiv.com/drug-discovery-services/discovery-biology/adme-dmpk/
dmpk services https://www.chemdiv.com/drug-discovery-services/discovery-biology/adme-dmpk/
chemical vendors https://welcome.chemdiv.com/

The work is big with different requests. Study the problem well and offer your prices.